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Volcanic ash, more generally known as tephra, sometimes hides in ice. It’s a special find because it can be geochemically tied to a specific volcano. “The tephra comes from the magma itself,

Sulfur is also indicative of a past eruption. Sulfur dioxide, a gas commonly belched by erupting volcanoes, reacts with water in the atmosphere to create sulfate aerosols. These tiny particles can linger in the stratosphere for years, riding wind currents, but they, like tephra, eventually fall back to Earth.

The ice also carries a time stamp. Dr. McConnell and his colleagues look for variations in elements like sodium, which is found in sea spray that’s seasonally blown inland. By simply counting annual variations in these elements, it’s possible to trace the passage of time, Dr. McConnell said. “It’s like a tree-ring record.”

In layers of ice corresponding to the early months of 43 B.C., they spotted large upticks in sulfur and, crucially, bits of material that were probably tephra. The timing caught the scientists’ attention.

Researchers have previously hypothesized that an environmental trigger may have helped set in motion the crop failures, famines and social unrest that plagued the Mediterranean region at that time. But until now, “There hasn’t been the kind of data that these scholars brought forth to really get those theories into the mainstream,”

The match was spot on, Dr. Plunkett said. “There are some events that are tricky. With Okmok, there’s nothing else that looks like it.”

This eruption was one of the largest of the last few millenniums, Dr. McConnell and his collaborators concluded, and the sulfate aerosols it created remained in the stratosphere for several years. These tiny particles are particularly good at reflecting sunlight, which means they can temporarily alter Earth’s climate.

“They’ve created, for a short term, global cooling events,”

Using climate models to simulate the impact of an Okmok eruption, Dr. McConnell and his collaborators estimated that parts of the Mediterranean, roughly 6,000 miles away, would have cooled by as much as 13.3 degrees Fahrenheit.

“It’s an incredible coincidence that it happened exactly in the waning years of the Roman Republic when things were falling apart,”

That climate shock came at precisely the wrong time, Dr. Clark said. “This was a period of Mediterranean-wide political, social and economic upheaval.”

Historical records compiled by Roman writers and philosophers note food shortages and famines. In 43 B.C., Mark Antony, the Roman military leader, and his army had to subsist on wild fruit, roots, bark and “animals never tasted before,” the philosopher Plutarch wrote.

For a society already reeling from the assassination of Julius Caesar the year before, such trying conditions might have exacerbated social unrest, the researchers concluded. They might even have kick-started transfers of political power that led to the rise of the Roman Empire.

Rain patterns changed as well — some regions would have been drenched by 400 percent more precipitation than normal, the modeling revealed.

The links in the study are probable, but not definite. “They’re not being heavy handed and saying this is absolutely it,” Dr. Holmberg said.

Egyptian society, before the installation of the Aswan Low Dam in the early 20th century, was anchored by the annual summer flooding of the Nile River. These summer floods, sustained by monsoon rains in the highlands of Ethiopia, delivered irrigation and silt, both critical to Egypt’s agrarian society. “The whole rhythm of the year was built around responding to the flood,” Dr. Manning of Yale said.

But volcanic eruptions, even those on the other side of the world, could have disrupted that flooding, Dr. Manning and his colleagues recently showed. Using records from Cairo’s Nilometer — an octagonal marble column that was used for recording Nile flood height from 622 to 1902 A.D., the team found that flooding tended to be weaker, or entirely absent, during years when there was a large volcanic eruption somewhere in the world.

he culprit, the team reasoned in a paper published a few years ago, was cooling caused by sulfate aerosols. When Earth cools after a large eruption, its atmospheric circulation patterns change. That can shift the invisible meeting point of Northern and Southern Hemisphere trade winds — the Intertropical Convergence Zone — that affects where monsoon rains tend to fall. When less precipitation falls over Ethiopia, home to a major tributary of the Nile, there’s less water available for flooding that year.

Ptolemaic-era records revealed that this reduced flooding had socioeconomic and political consequences. Revolts increased in the years following “Nile failure,” Dr. Manning and his colleagues found. Priestly decrees — intended to establish the political legitimacy of Greek rulers — also became more commonplace.

“There are still large unsourced mystery eruptions up until the early 19th century.”

Right now, roughly a dozen volcanoes are erupting. In all likelihood, they’re nothing to worry about — it’s doubtful you’ve even heard of them. But every once in a while, there’s bound to be a really big eruption. How its effects ripple around the world awaits to be seen.

It is unknown who caused the defacement, or if the Trump website was hacked.

A Trump campaign spokesman said that no sensitive data was at risk.

“Earlier this evening, the Trump campaign website was defaced and we are working with law enforcement authorities to investigate the source of the attack,”

“There was no exposure to sensitive data because none of it is actually stored on the site. The website has been restored.”

the press for using the term “shadow docket”, a term coined by a conservative law professor. All Justice Alito succeeded in doing, however, is proving his sensitivity to the public discourse about the court.

Most recently, Justice Samuel Alito gave a speech at the University of Notre Dame that can only be described as an attempted takedown of the press.

“beyond recognition” in order to “justify” reimposing juvenile life without parole. The court rejected its own decisions in cases decided just nine and five years ago respectively. When precedent is so blatantly ignored, it is difficult to explain the court’s change in direction but for politics.

Such a claim of ethical clarity just isn’t credible when it is uttered on stage right next to the person most responsible for the partisan gamesmanship that packed the court. What Justice Barrett did succeed in doing with her remarks is to confirm just how closely justices listen to the public narrative about the court – and how sensitive they are to it.

The justices, through their own actions and words, have demonstrated their vulnerability to public pressure in support of court reform. Turns out, justices do not like being told they have no clothes on.

As the court delves into its new term, it should have no doubt that all eyes will be upon it. If they want to escape it, rather than hoping the press will be cowed into submission, the justices of the court might consider fulfilling the mission of the institution they embody, by upholding constitutional rights and respecting judicial norms.

titled “Tightness-Looseness Across the 50 United States,” the study calculated a catalog of measures for each state, including the incidence of natural disasters, disease prevalence, residents’ levels of openness and conscientiousness, drug and alcohol use, homelessness and incarceration rates.

Gelfand said:Some groups have much stronger norms than others; they’re tight. Others have much weaker norms; they’re loose. Of course, all cultures have areas in which they are tight and loose — but cultures vary in the degree to which they emphasize norms and compliance with them.

states in New England and on the West Coast were the loosest: California, Oregon, Washington, Maine, Massachusetts, Connecticut, New Hampshire and Vermont.

In both 2016 and 2020, Donald Trump carried all 10 of the top “tight” states; Hillary Clinton and Joe Biden carried all 10 of the top “loose” states.

“Rule Makers, Rule Breakers: How Tight and Loose Cultures Wire the World” in 2018, in which she described the results of a 2016 pre-election survey she and two colleagues had commissioned

The results were telling: People who felt the country was facing greater threats desired greater tightness. This desire, in turn, correctly predicted their support for Trump. In fact, desired tightness predicted support for Trump far better than other measures. For example, a desire for tightness predicted a vote for Trump with 44 times more accuracy than other popular measures of authoritarianism.

The 2016 election, Gelfand continued, “turned largely on primal cultural reflexes — ones that had been conditioned not only by cultural forces, but by a candidate who was able to exploit them.”

Along the same lines, if liberals and conservatives hold differing moral visions, not just about what makes a good government but about what makes a good life, what turned the relationship between left and right from competitive to mutually destructive?

Cultural differences, Gelfand continued, “have a certain logic — a rationale that makes good sense,” noting that “cultures that have threats need rules to coordinate to survive (think about how incredibly coordinated Japan is in response to natural disasters).

cultures that don’t have a lot of threat can afford to be more permissive and loose.”

The tight-loose concept, Gelfand argued,is an important framework to understand the rise of President Donald Trump and other leaders in Poland, Hungary, Italy, and France,

The gist is this: when people perceive threat — whether real or imagined, they want strong rules and autocratic leaders to help them survive

My research has found that within minutes of exposing study participants to false information about terrorist incidents, overpopulation, pathogen outbreaks and natural disasters, their minds tightened. They wanted stronger rules and punishments.

The South dominated the tight states: Mississippi, Alabama Arkansas, Oklahoma, Tennessee, Texas, Louisiana, Kentucky, South Carolina and North Carolina

Looseness, Gelfand posits, fosters tolerance, creativity and adaptability, along with such liabilities as social disorder, a lack of coordination and impulsive behavior.

If liberalism and conservatism have historically played a complementary role, each checking the other to constrain extremism, why are the left and right so destructively hostile to each other now, and why is the contemporary political system so polarized?

Gelfand writes that tightness encourages conscientiousness, social order and self-control on the plus side, along with close-mindedness, conventional thinking and cultural inertia on the minus side.

Niemi contended that sensitivity to various types of threat is a key factor in driving differences between the far left and far right.

She cited research thatfound 47 percent of the most extreme conservatives strongly endorsed the view that “The world is becoming a more and more dangerous place,” compared to 19 percent of the most extreme liberals

Conservatives and liberals, Niemi continued,see different things as threats — the nature of the threat and how it happens to stir one’s moral values (and their associated emotions) is a better clue to why liberals and conservatives react differently.

Unlike liberals, conservatives strongly endorse the binding moral values aimed at protecting groups and relationships. They judge transgressions involving personal and national betrayal, disobedience to authority, and disgusting or impure acts such as sexually or spiritually unchaste behavior as morally relevant and wrong.

Underlying these differences are competing sets of liberal and conservative moral priorities, with liberals placing more stress than conservatives on caring, kindness, fairness and rights — known among scholars as “individualizing values

conservatives focus more on loyalty, hierarchy, deference to authority, sanctity and a higher standard of disgust, known as “binding values.”

As a set, Niemi wrote, conservative binding values encompassthe values oriented around group preservation, are associated with judgments, decisions, and interpersonal orientations that sacrifice the welfare of individuals

Just as ecological factors differing from region to region over the globe produced different cultural values, ecological factors differed throughout the U.S. historically and today, producing our regional and state-level dimensions of culture and political patterns.

Niemi cited a paper she and Liane Young, a professor of psychology at Boston College, published in 2016, “When and Why We See Victims as Responsible: The Impact of Ideology on Attitudes Toward Victims,” which tested responses of men and women to descriptions of crimes including sexual assaults and robberies.

We measured moral values associated with unconditionally prohibiting harm (“individualizing values”) versus moral values associated with prohibiting behavior that destabilizes groups and relationships (“binding values”: loyalty, obedience to authority, and purity)

Increased endorsement of binding values predicted increased ratings of victims as contaminated, increased blame and responsibility attributed to victims, increased perceptions of victims’ (versus perpetrators’) behaviors as contributing to the outcome, and decreased focus on perpetrators.

For example, binding values are associated with Machiavellianism (e.g., status-seeking and lying, getting ahead by any means, 2013); victim derogation, blame, and beliefs that victims were causal contributors for a variety of harmful acts (2016, 2020); and a tendency to excuse transgressions of ingroup members with attributions to the situation rather than the person (2023).

What happened to people ecologically affected social-political developments, including the content of the rules people made and how they enforced them

Numerous factors potentially influence the evolution of liberalism and conservatism and other social-cultural differences, including geography, topography, catastrophic events, and subsistence styles

Joshua Hartshorne, who is also a professor of psychology at Boston College, took issue with the binding versus individualizing values theory as an explanation for the tendency of conservatives to blame victims:

I would guess that the reason conservatives are more likely to blame the victim has less to do with binding values and more to do with the just-world bias (the belief that good things happen to good people and bad things happen to bad people, therefore if a bad thing happened to you, you must be a bad person).

Belief in a just world, Hartshorne argued, is crucial for those seeking to protect the status quo:It seems psychologically necessary for anyone who wants to advocate for keeping things the way they are that the haves should keep on having, and the have-nots have got as much as they deserve. I don’t see how you could advocate for such a position while simultaneously viewing yourself as moral (and almost everyone believes that they themselves are moral) without also believing in the just world

Conversely, if you generally believe the world is not just, and you view yourself as a moral person, then you are likely to feel like you have an obligation to change things.

I asked Lene Aaroe, a political scientist at Aarhus University in Denmark, why the contemporary American political system is as polarized as it is now, given that the liberal-conservative schism is longstanding. What has happened to produce such intense hostility between left and right?

There is variation across countries in hostility between left and right. The United States is a particularly polarized case which calls for a contextual explanatio

A central explanation typically offered for the current situation in American politics is that partisanship and political ideology have developed into strong social identities where the mass public is increasingly sorted — along social, partisan, and ideological lines.

I then asked Aaroe why surveys find that conservatives are happier than liberals. “Some research,” she replied, “suggests that experiences of inequality constitute a larger psychological burden to liberals because it is more difficult for liberals to rationalize inequality as a phenomenon with positive consequences.”

Steven Pinker, a professor of psychology at Harvard, elaborated in an email on the link between conservatism and happiness:

t’s a combination of factors. Conservatives are likelier to be married, patriotic, and religious, all of which make people happier

They may be less aggrieved by the status quo, whereas liberals take on society’s problems as part of their own personal burdens. Liberals also place politics closer to their identity and striving for meaning and purpose, which is a recipe for frustration.

Some features of the woke faction of liberalism may make people unhappier: as Jon Haidt and Greg Lukianoff have suggested, wokeism is Cognitive Behavioral Therapy in reverse, urging upon people maladaptive mental habits such as catastrophizing, feeling like a victim of forces beyond one’s control, prioritizing emotions of hurt and anger over rational analysis, and dividing the world into allies and villains.

Why, I asked Pinker, would liberals and conservatives react differently — often very differently — to messages that highlight threat?

It may be liberals (or at least the social-justice wing) who are more sensitive to threats, such as white supremacy, climate change, and patriarchy; who may be likelier to moralize, seeing racism and transphobia in messages that others perceive as neutral; and being likelier to surrender to emotions like “harm” and “hurt.”

The authors used neural imaging to follow changes in the dorsomedial prefrontal cortex (known as DMPFC) as conservatives and liberals watched videos presenting strong positions, left and right, on immigration.

there are ways to persuade conservatives to support liberal initiatives and to persuade liberals to back conservative proposals:

While liberals tend to be more concerned with protecting vulnerable groups from harm and more concerned with equality and social justice than conservatives, conservatives tend to be more concerned with moral issues like group loyalty, respect for authority, purity and religious sanctity than liberals are. Because of these different moral commitments, we find that liberals and conservatives can be persuaded by quite different moral arguments

For example, we find that conservatives are more persuaded by a same-sex marriage appeal articulated in terms of group loyalty and patriotism, rather than equality and social justice.

“political arguments reframed to appeal to the moral values of those holding the opposing political position are typically more effective

We find support for these claims across six studies involving diverse political issues, including same-sex marriage, universal health care, military spending, and adopting English as the nation’s official language.”

In one test of persuadability on the right, Feinberg and Willer assigned some conservatives to read an editorial supporting universal health care as a matter of “fairness (health coverage is a basic human right)” or to read an editorial supporting health care as a matter of “purity (uninsured people means more unclean, infected, and diseased Americans).”

Conservatives who read the purity argument were much more supportive of health care than those who read the fairness case.

Liberals who read the fairness argument were substantially more supportive of military spending than those who read the loyalty and authority argument.

In “Conservative and Liberal Attitudes Drive Polarized Neural Responses to Political Content,” Willer, Yuan Chang Leong of the University of Chicago, Janice Chen of Johns Hopkins and Jamil Zaki of Stanford address the question of how partisan biases are encoded in the brain:

society. How do such biases arise in the brain? We measured the neural activity of participants watching videos related to immigration policy. Despite watching the same videos, conservative and liberal participants exhibited divergent neural responses. This “neural polarization” between groups occurred in a brain area associated with the interpretation of narrative content and intensified in response to language associated with risk, emotion, and morality. Furthermore, polarized neural responses predicted attitude change in response to the videos.

The four authors argue that their “findings suggest that biased processing in the brain drives divergent interpretations of political information and subsequent attitude polarization.” These results, they continue, “shed light on the psychological and neural underpinnings of how identical information is interpreted differently by conservatives and liberals.”

While liberals and conservatives, guided by different sets of moral values, may make agreement on specific policies difficult, that does not necessarily preclude consensus.

or each video,” they write,participants with DMPFC activity time courses more similar to that of conservative-leaning participants became more likely to support the conservative positio

Conversely, those with DMPFC activity time courses more similar to that of liberal-leaning participants became more likely to support the liberal position. These results suggest that divergent interpretations of the same information are associated with increased attitude polarizatio

Together, our findings describe a neural basis for partisan biases in processing political information and their effects on attitude change.

Describing their neuroimaging method, the authors point out that theysearched for evidence of “neural polarization” activity in the brain that diverges between people who hold liberal versus conservative political attitudes. Neural polarization was observed in the dorsomedial prefrontal cortex (DMPFC), a brain region associated with the interpretation of narrative content.

The question is whether the political polarization that we are witnessing now proves to be a core, encoded aspect of the human mind, difficult to overcome — as Leong, Chen, Zaki and Willer sugges

— or whether, with our increased knowledge of the neural basis of partisan and other biases, we will find more effective ways to manage these most dangerous of human predispositions.

“We are called to encounter Christ in the people we meet. The typical Jesuit starting point is the experience of people,” Smolich said. “Out of that, we might be more nuanced or more sensitive or more compassionate, in terms of how various church teachings are experienced by people in the pews.”

On the other hand, the new pontiff’s emphasis on uplifting the poor and marginalized is very much in keeping with the Jesuit mission: They take a vow of poverty and have been focused in recent decades on Latin America, home to the world’s largest economic inequality gap.

warn that Twitter was a threat to national unity,

Many Saudis have seized on Twitter as the most immediate and effective way to open little windows into a traditionally opaque society.

A number of web activists have been detained, including at least one for the alleged apostasy, a charge that could carry the death penalty.

Billionaire businessman Prince Alwaleed Bin Talal, who presents himself as a reformist, has described attempts to restrict social media as a losing battle.

the mouth feel of soda and many other food items, especially those high in fat, is second only to the bliss point in its ability to predict how much craving a product will induce.

He organized focus-group sessions with the people most responsible for buying bologna — mothers — and as they talked, he realized the most pressing issue for them was time. Working moms strove to provide healthful food, of course, but they spoke with real passion and at length about the morning crush, that nightmarish dash to get breakfast on the table and lunch packed and kids out the door.

as the focus swung toward kids, Saturday-morning cartoons started carrying an ad that offered a different message: “All day, you gotta do what they say,” the ads said. “But lunchtime is all yours.”

When it came to Lunchables, they did try to add more healthful ingredients. Back at the start, Drane experimented with fresh carrots but quickly gave up on that, since fresh components didn’t work within the constraints of the processed-food system, which typically required weeks or months of transport and storage before the food arrived at the grocery store. Later, a low-fat version of the trays was developed, using meats and cheese and crackers that were formulated with less fat, but it tasted inferior, sold poorly and was quickly scrapped.

One of the company’s responses to criticism is that kids don’t eat the Lunchables every day — on top of which, when it came to trying to feed them more healthful foods, kids themselves were unreliable. When their parents packed fresh carrots, apples and water, they couldn’t be trusted to eat them. Once in school, they often trashed the healthful stuff in their brown bags to get right to the sweets.

This idea — that kids are in control — would become a key concept in the evolving marketing campaigns for the trays. In what would prove to be their greatest achievement of all, the Lunchables team would delve into adolescent psychology to discover that it wasn’t the food in the trays that excited the kids; it was the feeling of power it brought to their lives.

The prevailing attitude among the company’s food managers — through the 1990s, at least, before obesity became a more pressing concern — was one of supply and demand. “People could point to these things and say, ‘They’ve got too much sugar, they’ve got too much salt,’ ” Bible said. “Well, that’s what the consumer wants, and we’re not putting a gun to their head to eat it. That’s what they want. If we give them less, they’ll buy less, and the competitor will get our market. So you’re sort of trapped.”

at last count, including sales in Britain, they were approaching the $1 billion mark. Lunchables was more than a hit; it was now its own category

he holds the entire industry accountable. “What do University of Wisconsin M.B.A.’s learn about how to succeed in marketing?” his presentation to the med students asks. “Discover what consumers want to buy and give it to them with both barrels. Sell more, keep your job! How do marketers often translate these ‘rules’ into action on food? Our limbic brains love sugar, fat, salt. . . . So formulate products to deliver these. Perhaps add low-cost ingredients to boost profit margins. Then ‘supersize’ to sell more. . . . And advertise/promote to lock in ‘heavy users.’ Plenty of guilt to go around here!”

men in the eastern part of Finland had the highest rate of fatal cardiovascular disease in the world. Research showed that this plague was not just a quirk of genetics or a result of a sedentary lifestyle — it was also owing to processed foods. So when Finnish authorities moved to address the problem, they went right after the manufacturers. (The Finnish response worked. Every grocery item that was heavy in salt would come to be marked prominently with the warning “High Salt Content.” By 2007, Finland’s per capita consumption of salt had dropped by a third, and this shift — along with improved medical care — was accompanied by a 75 percent to 80 percent decline in the number of deaths from strokes and heart disease.)

I tracked Lin down in Irvine, Calif., where we spent several days going through the internal company memos, strategy papers and handwritten notes he had kept. The documents were evidence of the concern that Lin had for consumers and of the company’s intent on using science not to address the health concerns but to thwart them. While at Frito-Lay, Lin and other company scientists spoke openly about the country’s excessive consumption of sodium and the fact that, as Lin said to me on more than one occasion, “people get addicted to salt

the marketing team was joined by Dwight Riskey, an expert on cravings who had been a fellow at the Monell Chemical Senses Center in Philadelphia, where he was part of a team of scientists that found that people could beat their salt habits simply by refraining from salty foods long enough for their taste buds to return to a normal level of sensitivity. He had also done work on the bliss point, showing how a product’s allure is contextual, shaped partly by the other foods a person is eating, and that it changes as people age. This seemed to help explain why Frito-Lay was having so much trouble selling new snacks. The largest single block of customers, the baby boomers, had begun hitting middle age. According to the research, this suggested that their liking for salty snacks — both in the concentration of salt and how much they ate — would be tapering off.

Riskey realized that he and his colleagues had been misreading things all along. They had been measuring the snacking habits of different age groups and were seeing what they expected to see, that older consumers ate less than those in their 20s. But what they weren’t measuring, Riskey realized, is how those snacking habits of the boomers compared to themselves when they were in their 20s. When he called up a new set of sales data and performed what’s called a cohort study, following a single group over time, a far more encouraging picture — for Frito-Lay, anyway — emerged. The baby boomers were not eating fewer salty snacks as they aged. “In fact, as those people aged, their consumption of all those segments — the cookies, the crackers, the candy, the chips — was going up,” Riskey said. “They were not only eating what they ate when they were younger, they were eating more of it.” In fact, everyone in the country, on average, was eating more salty snacks than they used to. The rate of consumption was edging up about one-third of a pound every year, with the average intake of snacks like chips and cheese crackers pushing past 12 pounds a year

Riskey had a theory about what caused this surge: Eating real meals had become a thing of the past.

“We looked at this behavior, and said, ‘Oh, my gosh, people were skipping meals right and left,’ ” Riskey told me. “It was amazing.” This led to the next realization, that baby boomers did not represent “a category that is mature, with no growth. This is a category that has huge growth potential.”

The food technicians stopped worrying about inventing new products and instead embraced the industry’s most reliable method for getting consumers to buy more: the line extension.

He zeroed right in on the Cheetos. “This,” Witherly said, “is one of the most marvelously constructed foods on the planet, in terms of pure pleasure.” He ticked off a dozen attributes of the Cheetos that make the brain say more. But the one he focused on most was the puff’s uncanny ability to melt in the mouth. “It’s called vanishing caloric density,” Witherly said. “If something melts down quickly, your brain thinks that there’s no calories in it . . . you can just keep eating it forever.”

Frito-Lay acquired Stacy’s Pita Chip Company, which was started by a Massachusetts couple who made food-cart sandwiches and started serving pita chips to their customers in the mid-1990s. In Frito-Lay’s hands, the pita chips averaged 270 milligrams of sodium — nearly one-fifth a whole day’s recommended maximum for most American adults — and were a huge hit among boomers.

There’s a paradox at work here. On the one hand, reduction of sodium in snack foods is commendable. On the other, these changes may well result in consumers eating more. “The big thing that will happen here is removing the barriers for boomers and giving them permission to snack,” Carey said. The prospects for lower-salt snacks were so amazing, he added, that the company had set its sights on using the designer salt to conquer the toughest market of all for snacks: schools

The company’s chips, he wrote, were not selling as well as they could for one simple reason: “While people like and enjoy potato chips, they feel guilty about liking them. . . . Unconsciously, people expect to be punished for ‘letting themselves go’ and enjoying them.” Dichter listed seven “fears and resistances” to the chips: “You can’t stop eating them; they’re fattening; they’re not good for you; they’re greasy and messy to eat; they’re too expensive; it’s hard to store the leftovers; and they’re bad for children.” He spent the rest of his memo laying out his prescriptions, which in time would become widely used not just by Frito-Lay but also by the entire industry.

Dichter advised Frito-Lay to move its chips out of the realm of between-meals snacking and turn them into an ever-present item in the American diet. “The increased use of potato chips and other Lay’s products as a part of the regular fare served by restaurants and sandwich bars should be encouraged in a concentrated way,”

the largest weight-inducing food was the potato chip. The coating of salt, the fat content that rewards the brain with instant feelings of pleasure, the sugar that exists not as an additive but in the starch of the potato itself — all of this combines to make it the perfect addictive food. “The starch is readily absorbed,” Eric Rimm, an associate professor of epidemiology and nutrition at the Harvard School of Public Health and one of the study’s authors, told me. “More quickly even than a similar amount of sugar. The starch, in turn, causes the glucose levels in the blood to spike” — which can result in a craving for more.

If Americans snacked only occasionally, and in small amounts, this would not present the enormous problem that it does. But because so much money and effort has been invested over decades in engineering and then relentlessly selling these products, the effects are seemingly impossible to unwind.

Todd Putman, who worked at Coca-Cola from 1997 to 2001, said the goal became much larger than merely beating the rival brands; Coca-Cola strove to outsell every other thing people drank, including milk and water. The marketing division’s efforts boiled down to one question, Putman said: “How can we drive more ounces into more bodies more often?”

“The 14th Amendment says every person has a right to equal protection under the law,” he told the crowd.  “When you engage in intentional voter discrimination, you are robbing people of their equal protection under the law.” His words were both a benediction and a battle cry.

Even after 1965, North Carolina still struggled mightily with racial equality at the ballot. Thirty-six percent of all eligible black adults were registered to vote in North Carolina in 1963, and while that number jumped to 50 percent after the passage of the Voting Rights Act, it stalled there.

By 1980, the proportion of registered black voters had barely inched up to 52 percent. Adjustments made in 1982, including a new legal test for discrimination based on the effect of changes rather their intent, restored some momentum.

Why didn’t—or couldn’t—more black people vote once extended the franchise? One reason is that all the structural barriers to voting hadn’t been eliminated. Research indicates that polling places in minority neighborhoods tend to be less common, understaffed, and underfunded relative to those in white neighborhoods, making longer lines in minority areas much more likely.

Economic and social frustrations deeply affected vulnerable people of color in North Carolina.

That infusion of black voters—who mostly vote Democratic—helped to unseat Republican Senator Elizabeth Dole, deliver one of North Carolina’s House seats to a Democrat, and give the party the General Assembly,

but there is no chance that the review will be completed before Election Day, several law enforcement officials said.

disgraced former congressman Anthony D. Weiner — opened Mr. Comey up to fierce criticism not only from Democrats but also from current and former officials at the F.B.I. and the Justice Department, including Republicans.

The letter is also the latest example of an at-times strained relationship between the Justice Department and Mr. Comey, who technically answers to the attorney general but who — on issues of race, encryption, policing and, most notably, the Clinton investigation — has branded himself as someone who operates outside Washington’s typical chain of command.

about the new emails far outweighed concerns about the department guidelines, one senior law enforcement official said.

Under Justice Department policy, restated each election cycle, politics should play no role in any investigative decisions.

Mr. Weiner had sent illicit text messages to a 15-year-old girl in North Carolina, top prosecutors in Charlotte and Manhattan jockeyed for the case

F.B.I.’s New York field office understood that the Weiner investigation could possibly turn up additional emails related to Mrs. Clinton’s private server, according to a senior federal law enforcement official. Mr. Weiner’s estranged wife, Huma Abedin, is a top adviser to Mrs. Clinton.

During the course of searching the seized devices, the F.B.I. discovered thousands of emails, according to senior law enforcement officials, some of them sent between Ms. Abedin and other Clinton aides.

The government has not yet concluded that the new emails contain classified information, but investigators felt obligated to look.

which said emails had surfaced in a case unrelated to the Clinton case. Mr. Comey said that the F.B.I. would review the emails to determine if they improperly contained classified information, adding that the emails “appear to be pertinent.”

They charged that just 11 days before an election, he was unnecessarily inserting himself into politics.

The extra resources are an acknowledgment, U.S. officials say, that the war can’t be won without a greater level of American involvement.

intense Islamic State fire from the small but strategically important village of Al-Nasr, about 40 miles to the south. It was a reminder, said Col. Steve Warren, a U.S. military spokesman, that “we’ve got a foot on his neck but he’s still got some fight in him."

We have to pause, reset a bit and do some things.”

U.S. officials say they have seen no fallout yet from the fracas in Baghdad, but don’t rule out that there could be one if the political instability continues.

One major effort for which the United States needs Turkish engagement is a faltering offensive against the Islamic State in the northern Syrian countryside of Aleppo province, bordering Turkey.

Cutting the Islamic State’s vital supply route to Turkey is considered an essential prerequisite for any eventual offensive to retake Raqqa.

The recent resumption of fighting around the nearby city of Aleppo has come as a fresh reminder that the war in Syria will continue to draw resources away from the Islamic State fight. Peace talks in Geneva aimed at ending the conflict have deadlocked, eroding hopes that a political solution is in sight.

It was repelled, however, only with the help of intense U.S. airstrikes, underscoring the vital role the United States plays in securing recaptured territory.

But were you to remove that air power and the capabilities the Americans bring, I could imagine them making gains again on the ground.”

Israel’s culture and sports minister, Miri Regev, said Golan should resign. "It cannot be that the deputy chief of staff, a

If there is one thing that frightens me about the memory of the Holocaust, it is identifying the revolting trends that occurred in Europe as a whole, and in Germany in particular, some 70, 80 and 90 years ago, and finding evidence of those trends here, among us, in 2016.

Israel and parts of the Jewish world, especially on such a sensitive day, and that he was fully aware that within the space of a few hours he would become public enemy no. 1 for Israeli right wingers and self-styled Jewish patriots abroad.

This is not the first time in recent months that Israeli military brass have found themselves criticized by Israel's hard right.

It is probably worth noting that the day after Golan gave his speech, he issued a statement in which he walked back his remarks, saying he had not meant to compare Israel to Nazi Germany, nor to criticize the current leadership, nor the Israel Defense Forces,

France has been under a state of emergency since IS attacks on Paris in November killed 130 people in what President Francois Hollande called an "act of war".

It questioned the deployment of between 6,000 and 7,000 soldiers to protect schools, synagogues, department stores and other sensitive sites.

Security is a central issue in the run-up to next year's presidential election but Mr Valls said proposals by the former French President, Nicolas Sarkozy, to set up special courts and detention centres were not the answer.

"Every Frenchman suspected of being linked to terrorism, because he regularly consults a jihadist website, or his behaviour shows signs of radicalisation or because is in close contact with radicalised people, must by preventively placed in a detention centre,"

Meanwhile, prosecutors charged one of the women arrested over a foiled attack near Notre Dame Cathedral in Paris.

Paris prosecutor Francois Molins said on Friday that Ornella G's fingerprints had been found inside the car. She was known to intelligence agents as someone who was considering going to Syria.

Enter Elkins. Young, articulate and photogenic, she was fired up with outrage over her findings. Her book cut against an abiding belief that the British had managed and retreated from their empire with more dignity and humanity than other former colonial powers, such as the French or the Belgians.

Some academics shared her enthusiasm. By conveying the perspective of the Mau Mau themselves, Britain’s Gulag marked a “historical breakthrough”, says Wm Roger Louis, a historian of the British empire at the University of Texas at Austin. Richard Drayton of King’s College London, another imperial historian, judged it an “extraordinary” book whose implications went beyond Kenya. It set the stage for a rethinking of British imperial violence, he says, demanding that scholars reckon with colonial brutality in territories such as Cyprus, Malaya, and Aden (now part of Yemen).

But many other scholars slammed the book. No review was more devastating than the one that Bethwell A Ogot, a senior Kenyan historian, published in the Journal of African History. Ogot dismissed Elkins as an uncritical imbiber of Mau Mau propaganda. In compiling “a kind of case for the prosecution”, he argued, she had glossed over the litany of Mau Mau atrocities: “decapitation and general mutilation of civilians, torture before murder, bodies bound up in sacks and dropped in wells, burning the victims alive, gouging out of eyes, splitting open the stomachs of pregnant women”. Ogot also suggested that Elkins might have made up quotes and fallen for the bogus stories of financially motivated interviewees. Pascal James Imperato picked up the same theme in African Studies Review. Elkins’s work, he wrote, depended heavily on the “largely uncorroborated 50-year-old memories of a few elderly men and women interested in financial reparations”.

In this very long book, she really doesn’t bring out any more evidence than that for talking about the possibility of hundreds of thousands killed, and talking in terms almost of genocide as a policy,” says Philip Murphy, a University of London historian who directs the Institute of Commonwealth Studies and co-edits the Journal of Imperial and Commonwealth History. This marred what was otherwise an “incredibly valuable” study, he says. “If you make a really radical claim about history, you really need to back it up solidly.

Critics didn’t just find the substance overstated. They also rolled their eyes at the narrative Elkins told about her work. Particularly irksome, to some Africanists, was her claim to have discovered an unknown story

During the Mau Mau war, journalists, missionaries and colonial whistleblowers had exposed abuses. The broad strokes of British misbehaviour were known by the late 60s, Berman argued. Memoirs and studies had added to the picture. Britain’s Gulag had broken important new ground, providing the most comprehensive chronicle yet of the detention camps and prison villages.

among Kenyanists, Berman wrote, the reaction had generally been no more than: “It was as bad as or worse than I had imagined from more fragmentary accounts.”

If, at that late date,” he wrote, “she still believed in the official British line about its so-called civilising mission in the empire, then she was perhaps the only scholar or graduate student in the English-speaking world who did.”

she believes there was more going on than the usual academic disagreement. Kenyan history, she says, was “an old boys’ club”.

“Who is controlling the production of the history of Kenya? That was white men from Oxbridge, not a young American girl from Harvard,” she says.

for years clues had existed that Britain had also expatriated colonial records that were considered too sensitive to be left in the hands of successor governments. Kenyan officials had sniffed this trail soon after the country gained its independence. In 1967, they wrote to Britain’s Foreign Office asking for the return of the “stolen papers”. The response? Blatant dishonesty, writes David M Anderson, a University of Warwick historian and author of Histories of the Hanged, a highly regarded book about the Mau Mau war.

Internally, British officials acknowledged that more than 1,500 files, encompassing over 100 linear feet of storage, had been flown from Kenya to London in 1963, according to documents reviewed by Anderson. Yet they conveyed none of this in their official reply to the Kenyans

The turning point came in 2010, when Anderson, now serving as an expert witness in the Mau Mau case, submitted a statement to the court that referred directly to the 1,500 files spirited out of Kenya. Under legal pressure, the government finally acknowledged that the records had been stashed at a high-security storage facility that the Foreign Office shared with the intelligence agencies MI5 and MI6. It also revealed a bigger secret. This same repository, Hanslope Park, held files removed from a total of 37 former colonies.

A careful combing-through of these documents might normally have taken three years. Elkins had about nine months. Working with five students at Harvard, she found thousands of records relevant to the case: more evidence about the nature and extent of detainee abuse, more details of what officials knew about it, new material about the brutal “dilution technique” used to break hardcore detainees

The British government, defeated repeatedly in court, moved to settle the Mau Mau case. On 6 June 2013, the foreign secretary, William Hague, read a statement in parliament announcing an unprecedented agreement to compensate 5,228 Kenyans who were tortured and abused during the insurrection. Each would receive about £3,800. “The British government recognises that Kenyans were subject to torture and other forms of ill-treatment at the hands of the colonial administration,” Hague said. Britain “sincerely regrets that these abuses took place.” The settlement, in Anderson’s view, marked a “profound” rewriting of history. It was the first time Britain had admitted carrying out torture anywhere in its former empire.

some scholars find aspects of Elkins’s vindication story unconvincing. Philip Murphy, who specialises in the history of British decolonisation, attended some of the Mau Mau hearings. He thinks Elkins and other historians did “hugely important” work on the case. Still, he does not believe that the Hanslope files justify the notion that hundreds of thousands of people were killed in Kenya, or that those deaths were systematic. “Probably most of the historical criticisms of the book still stand,” he says. “I don’t think the trial really changes that.

second debate triggered by the Mau Mau case concerns not just Elkins but the future of British imperial history. At its heart is a series of documents that now sits in the National Archives as a result of Britain’s decision to make public the Hanslope files. They describe, in extensive detail, how the government went about retaining and destroying colonial records in the waning days of empire. Elkins considers them to be the most important new material to emerge from the Hanslope disclosure.

One record, a 1961 dispatch from the British colonial secretary to authorities in Kenya and elsewhere, states that no documents should be handed over to a successor regime that might, among other things, “embarrass” Her Majesty’s Government. Another details the system that would be used to carry out that order. All Kenyan files were to be classified either “Watch” or “Legacy”. The Legacy files could be passed on to Kenya. The Watch files would be flown back to Britain or destroyed. A certificate of destruction was to be issued for every document destroyed – in duplicate. The files indicate that roughly 3.5 tons of Kenyan documents were bound for the incinerator.

. Broadly speaking, she thinks end-of-empire historians have largely failed to show scepticism about the archives. She thinks that the fact that those records were manipulated puts a cloud over many studies that have been based on their contents. And she thinks all of this amounts to a watershed moment in which historians must rethink their field.

Murphy says Elkins “has a tendency to caricature other historians of empire as simply passive and unthinking consumers in the National Archives supermarket, who don’t think about the ideological way in which the archive is constructed”. They’ve been far more sceptical than that, he says. Historians, he adds, have always dealt with the absence of documents. What’s more, history constantly changes, with new evidence and new paradigms. To say that a discovery about document destruction will change the whole field is “simply not true”, he says. “That’s not how history works.”

Some historians who have read the document-destruction materials come away with a picture of events that seems less Orwellian than Elkins’s. Anderson’s review of the evidence shows how the purging process evolved from colony to colony and allowed substantial latitude to local officials. Tony Badger, a University of Cambridge professor emeritus who monitored the Hanslope files’ release, writes that there was “no systematic process dictated from London”

Badger sees a different lesson in the Hanslope disclosure: a “profound sense of contingency”. Over the decades, archivists and Foreign Office officials puzzled over what to do with the Hanslope papers. The National Archives essentially said they should either be destroyed or returned to the countries from which they had been taken. The files could easily have been trashed on at least three occasions, he says, probably without publicity. For a variety of reasons, they weren’t. Maybe it was the squirrel-like tendency of archivists. Maybe it was luck. In retrospect, he says, what is remarkable is not that the documents were kept secret for so many years. What is remarkable is that they survived at all.

Ronald Reagan did that very skillfully, whatever one may think of his vision. So did Bill Clinton

If you are going to mention groups in America, you had better mention all of them. If you don’t, those left out will notice and feel excluded. Which, as the data show, was exactly what happened with the white working class and those with strong religious convictions. Fully two-thirds of white voters without college degrees voted for Donald Trump, as did over 80 percent of white evangelicals.

the fixation on diversity in our schools and in the press has produced a generation of liberals and progressives narcissistically unaware of conditions outside their self-defined groups, and indifferent to the task of reaching out to Americans in every walk of life

our children are being encouraged to talk about their individual identities, even before they have them. By the time they reach college many assume that diversity discourse exhausts political discourse, and have shockingly little to say about such perennial questions as class, war, the economy and the common good

In large part this is because of high school history curriculums, which anachronistically project the identity politics of today back onto the past, creating a distorted picture of the major forces and individuals that shaped our country

When young people arrive at college they are encouraged to keep this focus on themselves by student groups, faculty members and also administrators whose full-time job is to deal with — and heighten the significance of — “diversity issues.”

How to explain to the average voter the supposed moral urgency of giving college students the right to choose the designated gender pronouns to be used when addressing them?

Fascination with the identity drama has even affected foreign reporting, which is in distressingly short supply. However interesting it may be to read, say, about the fate of transgender people in Egypt, it contributes nothing to educating Americans about the powerful political and religious currents that will determine Egypt’s future, and indirectly, our own.

it is at the level of electoral politics that identity liberalism has failed most spectacularly, as we have just seen. National politics in healthy periods is not about “difference,” it is about commonality. And it will be dominated by whoever best captures Americans’ imaginations about our shared destiny

One of the many lessons of the recent presidential election campaign and its repugnant outcome is that the age of identity liberalism must be brought to an end

A convenient liberal interpretation of the recent presidential election would have it that Mr. Trump won in large part because he managed to transform economic disadvantage into racial rage — the “whitelash” thesis

This is convenient because it sanctions a conviction of moral superiority and allows liberals to ignore what those voters said were their overriding concerns

It also encourages the fantasy that the Republican right is doomed to demographic extinction in the long run — which means liberals have only to wait for the country to fall into their laps. The surprisingly high percentage of the Latino vote that went to Mr. Trump should remind us that the longer ethnic groups are here in this country, the more politically diverse they become.

Finally, the whitelash thesis is convenient because it absolves liberals of not recognizing how their own obsession with diversity has encouraged white, rural, religious Americans to think of themselves as a disadvantaged group whose identity is being threatened or ignored.

they are reacting against the omnipresent rhetoric of identity, which is what they mean by “political correctness.”

the first identity movement in American politics was the Ku Klux Klan, which still exists. Those who play the identity game should be prepared to lose it.

We need a post-identity liberalism, and it should draw from the past successes of pre-identity liberalism. Such a liberalism would concentrate on widening its base by appealing to Americans as Americans and emphasizing the issues that affect a vast majority of them

As for narrower issues that are highly charged symbolically and can drive potential allies away, especially those touching on sexuality and religion, such a liberalism would work quietly, sensitively and with a proper sense of scale. (To paraphrase Bernie Sanders, America is sick and tired of hearing about liberals’ damn bathrooms.)

Teachers committed to such a liberalism would refocus attention on their main political responsibility in a democracy: to form committed citizens aware of their system of government and the major forces and events in our history.

A post-identity liberalism would also emphasize that democracy is not only about rights; it also confers duties on its citizens, such as the duties to keep informed and vote

A post-identity liberal press would begin educating itself about parts of the country that have been ignored, and about what matters there, especially religion

it would take seriously its responsibility to educate Americans about the major forces shaping world politics, especially their historical dimension.

In the end, the new emails that the F.B.I. reviewed

proved irrelevant.

Both Democratic and Republican administrations have interpreted that policy broadly to prohibit taking any steps that might even hint at an impression of partisanship.

Mr. Horowitz has the authority to recommend a criminal investigation if he finds evidence of illegality

there has been no suggestion that Mr. Comey’s actions were unlawful

The Justice Department and the F.B.I. have a longstanding policy against discussing criminal investigations

Michael Horowitz, said he would also be examining other issues, including whether the deputy director of the F.B.I., whose wife ran as a Democrat for the Virginia State Senate, should have recused himself from any involvement in the Clinton email investigation

It is extraordinarily rare for the inspector general to publicly disclose its investigations, particularly in such detail

Mr. Comey’s actions attracted criticism from members of both parties.

Donald J. Trump, on the other hand, accused him of being part of a rigged system because the F.B.I. cleared Mrs. Clinton of criminal liability

Since the election, Mr. Trump has not indicated whether he intends to keep Mr. Comey in his job

“This is highly encouraging and to be expected, given Director Comey’s drastic deviation from Justice Department protocol. A probe of this sort, however long it takes to conduct, is utterly necessary in order to take the first step to restore the F.B.I.’s reputation as a nonpartisan institution.”

also investigating whether the Justice Department’s top congressional liaison, Peter Kadzik, had improperly provided information to the Clinton campaign.

WikiLeaks showed that Mr. Kadzik alerted the campaign about an upcoming congressional hearing that would most likely raise questions about Mrs. Clinton.

The bureau., which usually keeps its distance from presidential campaigns, found itself much more centrally involved this time because of its yearlong investigation into Mrs. Clinton’s use of private email server.

Mr. Comey announced that the F.B.I. would not seek criminal charges against Mrs. Clinton. But he said she had been “extremely careless” in her handling of sensitive national security information during her time as secretary of state, from 2009 to 2013.

“Breitbart seemed like the exact opposite of everything I had been trained for and naturally tended towards,” the former priest said. “Which was help people understand each other, smooth over differences, show maybe you are not as far apart as you think.”

Mr. Williams speaks adoringly of his son and accompanies him to therapy. He said he was “thrilled” to have his mother-in-law visiting for the holidays. He paints Roman street scenes for his wife and expresses appreciation for a “full life.”

Generally, Mr. Williams said, Breitbart considered Pope Francis a challenge. “Challenging in the sense that they don’t love the guy,” he said, adding that Mr. Bannon, who declined to comment, was “suspicious” of Francis.

arms control to China, from radical Islamic terrorism to cyber threats and from nuclear proliferation to the price of energy. For all of the liberal media's mockery of Trump, he's right that dialogue with Moscow is essential, although dialogue with Moscow will be productive only if we talk about the tough issues we disagree on.

Getting along with Russia is a worthy goal, so long as the purpose is to attain a specific set of ends, not friendship for friendship's sake.

"Russia is a riddle wrapped in a mystery inside an enigma,"

We may, however, be able to cooperate with Russia on some issues, like terrorism, arms control, and perhaps stabilizing Central Asia

Russia may be calling the shots there, and may try to leverage this in other sensitive regions, such as the Baltics.

America does not have a Putin problem. Putin is a fairly typical Russian authoritarian leader, although more effective than most. If he were to pass away or be overthrown tomorrow, his successor would likely pursue a substantively similar foreign policy. America has a Russia problem, in that we have a difference in interests.

President-elect Trump is right: it would be nice if we got along with Russia. Every President since the end of the Cold War has had a similar sentiment. It is important to see dialogue and engagement as tools for achieving our objectives, not ends in and of themselves.

“If you get along and if Russia is really helping us, why would anybody have sanctions if somebody’s doing some really great things?” he said.

But Mr. Trump’s diplomatic efforts will have to compete with those in Congress, including many Republicans, who want to see the administration take a tough line with Russia after U.S. intelligence concluded that the government of Mr. Putin sought to influence the November presidential election with a campaign of cyberhacking.

Asked if he supported the One China policy on Taiwan, Mr. Trump said: “Everything is under negotiation including One China.”

. Any suggestion in the past that the U.S. may change its stance has been met with alarm in Beijing.

It added, “we urge relevant parties in the U.S. to fully recognize the high sensitivity of the Taiwan question, approach Taiwan-related issues with prudence and honor the commitment made by all previous U.S. administrations.”

“We sold them $2 billion of military equipment last year. We can sell them $2 billion of the latest and greatest military equipment but we’re not allowed to accept a phone call. First of all it would have been very rude not to accept the phone call.”

“Our companies can’t compete with them now because our currency is strong and it’s killing us.”

Later that night, House Speaker Paul Ryan (R., Wis.) said during a CNN town hall that he was working closely with the president-elect to repeal the health-care law but shot down the idea that there would be a “deportation force” to remove illegal immigrants from the U.S. Mr. Trump had said during the campaign that there would be such a force.

Mr. Trump weighed in on the latest development of the issue that dominated the end of the campaign.

In another matter, Mr. Trump during Friday’s interview described a special council, made up of 15 to 20 builders and engineers, t