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My estimate for the chances that we will master our problems and have a happy future, I would say the chances are 51 percent,” explains Diamond. “And the chances of a bad ending are only 49 percent.”

Either by the year 2050 we’ve succeeded in developing a sustainable economy, in which case we can then ask your question about 100 years from now, because there will be 100 years from now; or by 2050 we’ve failed to develop a sustainable economy, which means that there will no longer be first world living conditions, and there either won’t be humans 100 years from now, or those humans 100 years from now will have lifestyles similar of those of Cro-Magnons 40,000 years ago, because we’ve already stripped away the surface copper and the surface iron. If we knock ourselves out of the first world, we’re not going to be able to rebuild a first world.

It all depends, he says, on where we are at 2050:

Not everybody agrees with Diamond that we’re in such a perilous state, of course. But there is perhaps no more celebrated chronicler of why civilizations rise, and why they fall. That is, after all, why we read him. So when Diamond says we’ve got maybe 50 years to turn it around, we should at least consider the possibility that he might actually be right. For if he is, the consequences are so intolerable that anything possible should be done to avert them.

“It’s a profoundly damaging argument that tribal peoples are more violent than us,” said Survival’s Jonathan Mazower. “It simply isn’t true. If allowed to go unchallenged … it would do tremendous damage to the movement for tribal people’s rights. Diamond has constructed his argument using a small minority of anthropologists and using statistics in a way that is misleading and manipulative.”

Diamond confirmed his finding that “tribal warfare tends to be chronic, because there are not strong central governments that can enforce peace”. He accused Survival of falling into the thinking that views tribal people either as “primitive brutish barbarians” or as “noble savages, peaceful paragons of virtue living in harmony with their environment, and admirable compared to us, who are the real brutes”.

“The clear thrust of his argument is that there is a natural evolutionary path along which human society progresses and we are simply further along it,” said Mazower. “That’s extremely dangerous, because it is the notion that they’re backward and need to be ‘developed’. That thinking – and not that their way of living might be just as modern as any other way of living – is the same thinking that underpins governments that persecute tribal people.”

Diamond says Survival’s condemnation of his book is driven by something other than facts. He argues its protectiveness toward tribal societies has led it to deny practices including warfare, infanticide, widow-strangling and abandoning the elderly. “Well-meaning defenders of traditional peoples, including apparently Corry, feel it necessary to deny the existence of those practices,” he said. “That’s a very bad idea – ‘extremely dangerous’, to use Corry’s words where they really belong.

“Mistreatment of tribal peoples should be condemned not because you claim that they are peaceful when they really are not. It should instead be condemned on moral grounds: the mistreatment of any people is wrong.”

Diamond said his manuscript was reviewed by dozens of expert anthropologists without objection and named several scholars who concurred with him. “They all conclude that the percentage of a population meeting a violent death per year, averaged over a long period of alternating war and peace, is on the average considerably higher in tribal societies than in state societies.”

I'm bringing this lawsuit to bring about change on behalf of a community that deserves the inherent dignity to simply exist."

"Ms. Diamond repeatedly notified GDC officials ... of her sexual assaults and begged to be transferred to a safer facility. Rather than heed her urgent requests for safe housing, GDC officials instructed Ms. Diamond to 'guard her booty'

openly acknowledged that GDC was unable to keep Ms. Diamond safe so long as she remained a transgender woman housed in men's facilities."

instances of abuse during her time in GDC custody, including one where an inmate hid waiting for her in a utility closet to assault her, and a corrections officer allegedly admitted she had been warned that the incarcerated man had been hiding there before the attack

one employee who allegedly locked her in a room on two occasions and allegedly sexually harassed her for hours.

Diamond filed her first lawsuit against the department in 2015 while incarcerated. The case was ultimately settled, but during litigation the court ruled that it was unconstitutional for the department to fail to protect her.

Despite a GDC psychologist concluding that denying her treatments would jeopardize Diamond's physical and psychological well-being, she was again denied hormone therapy

"The fabric of trust that I have for authorities has been broken, especially with those who the state has designated as my care takers,"

"My hope is that the future is brighter for people like me," Diamond said in the release. "I hope this lawsuit forever changes the way transgender people in Georgia are treated. This fight is not just my fight, it's our fight."

Much higher tax rates on the highest earners can generate revenue to pay for new programs, and they can encourage a more equal distribution of pretax income. But these two objectives are in tension with each other — the more Mr. Saez is right that high rates will discourage ultrahigh incomes, the less revenue Mr. Sanders will get from his new taxes on ultrahigh earners.

Sanders’s plan would push rates near the revenue maximizing level: His plan would result in an all-in tax rate of just over 65 percent on income between $500,000 and $2 million.

Mr. Sanders’s 73 percent rate would apply only to ordinary income and only to people making over $10 million a year, which is not very many people.

Like much research about the interaction between taxes and the economy, theories about the revenue-maximizing tax rate are subject to high levels of both controversy and uncertainty. Some claims can be identified as clearly wrong — see, for example, the Tax Foundation’s claim that large across-the-board tax cuts proposed by Marco Rubio would cause revenues to be higher within a decade — but the range of possibly correct answers about what tax changes will do to pretax incomes remains large.

Mr. Saez and Mr. Diamond report a range of uncertainty around their own estimate of 73 percent as the revenue-maximizing top rate, which depends on the open question of how elastic taxable income is — that is, how much it declines when you tax people more.

Joel Slemrod, a collaborator of Mr. Saez’s, told The Washington Post in 2010 that the revenue-maximizing rate was “60 percent or higher.” Some conservative economists argue for lower rates by expressing concern that the revenue-maximizing rate will decline over time.

noted that most existing research on revenue-maximizing tax rates looks at the years immediately after a tax change, and therefore could miss long-run effects on taxpayer behavior. What if a high tax rate not only encourages people to work less, but also discourages them from going into certain high-paying fields in the first place? A result could be that revenues would first go up, and then down

The problem with this theory is that it is very difficult to test. Lots of factors besides tax rates affect incomes and economic growth, so looking over a long time range and figuring out which changes to incomes were caused by tax changes is very har

“There are no truly convincing estimates of the long-run elasticity,”

it is a good thing that Mr. Sanders’s plan does not rely mostly on these high-earner taxes. More than 80 percent of his proposed tax increases to pay for his health plan come from broad-based income and payroll taxes that would apply to nearly all

But if there’s been a massive online campaign of progressive allyship with Jews, I’ve missed it. If corporate executives have sent out workplace memos expressing concern for the safety of Jewish employees, I’ve missed it. If academic associations have issued public letters denouncing the use of anti-Semitic tropes by pro-Palestinian activists, I’ve missed them.

It is especially despicable when Israel is singled out in ways that apply to no other country. To take just one example, when was the last time you heard of a campus demonstration or a call for boycotts and divestment in response to Turkey’s 47-year occupation of northern Cyprus or its routine bombardment, using American-made jets, of Kurdish militants in Iraq?

But, again, this doesn’t go far enough. The accusations made against Israel — stealing Palestinian land (despite the fact that Israel vacated the territory from which it was subsequently attacked) and wanton violence against Palestinian civilians, particularly children (despite the fact that Israel regularly warned its targets to vacate buildings before targeting them) — can’t help but make me think of ancient libels about Jewish greed and bloodlust.

This ought to be whistling loudly in the ears of progressives who claim to be horrified by every form of prejudice. Instead, they have indulged an anti-Israel movement that keeps descending into the crudest forms of anti-Semitism.

Progressives will have to come to their own reckoning about what to do about the burgeoning anti-Semitism in their midst. As for Jews, they should take the events of the last few days less as an outrage than as an omen.

Undaunted, La Motte took a lover, Rétaux de Villette, a soldier who served with her husband, and also, in 1783, became the mistress of the prestigious Cardinal de Rohan. The cardinal, who had been French ambassador to Vienna a few years earlier, had fallen foul of Marie Antoinette’s mother, the Empress Maria Theresa, and wanted nothing more than to win back royal approval. La Motte saw her chance.

The cardinal was arrested, along with La Motte, the forger, Villette, the prostitute, d’Oliva and Count Cagliostro, one of the cardinal’s clients, whom La Motte accused of having orchestrated the entire con.

Jeanne de la Motte, the adventuress at the heart of the story, was found guilty and sentenced to be whipped, branded and imprisoned for life in the Salpêtrière, a notorious prison for prostitutes. However, she managed to escape disguised as a boy and made her way to London where, in 1789, she published her memoirs. Unsurprisingly, she blamed Marie Antoinette for the whole affair.

Only a few years later, she would face the guillotine, the dying symbol of the corruption of the ancien régime. 

Unless American and European democracies get their acts together, he warns darkly, the European Union and NATO might collapse, a “Greater Russian Empire” could rise as the heir to the Soviet Union and China would threaten the freedom of democracies across Asia — all resulting in “depths of oppression and aggression that we have not seen since the end of World War II.”

He’s strongly against wars for democracy, and opposed the United States invasion of Iraq and a protracted American military occupation there.

Repeatedly quoting from the Cold War strategist George F. Kennan, Diamond advocates a military buildup to thwart Russian or Chinese aggression.

just one year of Trump’s presidency, a Gallup poll found that the median approval of American leadership across 134 countries had cratered to just 30 percent — four points below that of George W. Bush in his last year, which priced in the Iraq war.

Liu Xiaobo, the Nobel laureate and democracy activist, wrote that “although people must still deal with tyranny and the suffering that it causes, they can respond to hate with love, to prejudice with tolerance, to arrogance with humility, to degradation with dignity and to violence with reason.”

As of Thursday, the Guardian had identified five ships in the Americas that were unable to unload nearly 6,000 passengers. At least three other ships were having trouble off the coast of Australia, including one which sought urgent medical attention for an outbreak of respiratory illness. Two more ships were trying to get passengers to ports in Italy.

Holland America said this week it had dispatched support in the form of another cruise ship carrying 611 extra staff, supplies and coronavirus test kits to meet up with the Zaandam, and that the cruise line is looking for other alternative locations to disembark passengers.

Passengers who spoke with the Guardian describe being locked down in the cabins, with three daily meals left on the floor outside their doors. Meanwhile the number of people reporting influenza-like symptoms has almost tripled this week: 56 passengers and 89 crew members, passengers say the ship’s captain has told them. Four elderly passengers reportedly required oxygen.

The fast-moving nature of the virus has added to the confusion – when many passengers left for vacations in early March there were no cases of Covid-19 in South America, so they thought it would be safe to travel.

cases of cruise ships being turned away from ports as a result of coronavirus fears began as early as January and escalated in February, with passengers being quarantined on the Emerald Princess in Japan on 3 February.

“There is a level of greed on the part of these companies,” he said. “They want to make every penny – and they make money when people are on the ships.”Cruise ships are drawing increasing government scrutiny for not doing enough to protect their passengers during this pandemic.

Despite Donald Trump’s repeated vows to bail out the cruise ship industry, money for cruise companies was not a part of the $500bn in aid for large employers included in stimulus bill passed by Congress on Wednesday.

Meanwhile a report from the US Centers for Disease Control this week laid the blame on cruise ships for spreading the virus in the crucial early weeks of the outbreak, linking hundreds of cases to the Diamond Princess and Grand Princess.

“The window of opportunity is still there, but the window of opportunity is narrowing,” WHO Director General Tedros Adhanom Ghebreyesus said on Friday. “We need to act quickly before it closes completely.”

At the beginning of any disease outbreak, public health experts painstakingly trace the contacts of every person who becomes sick. The experts build a family tree of possible illness, with branches that include anyone who might have shaken hands with, or been sneezed on by an infected person

with confirmed infections approaching 80,000 people, contact tracing on a case-by-case basis could soon be impractical.

“What we find is that this virus is going to be very difficult to contain,” said Jeffrey Shaman, an infectious disease researcher at Columbia University and co-author of the study posted Monday. “Personally, I don’t think we can do it.”

The word ‘pandemic’ invokes fear, but it describes how widespread an outbreak may be, not its deadliness.

“I think we should assume that this virus is very soon going to be spreading in communities here, if it isn’t already, and despite aggressive actions, we should be putting more efforts to mitigate impacts,”

The virus would be easier to contain if people who are contagious were obviously so, as was the case with SARS, which started an outbreak that burned itself out in 2003. But the new virus appears to spread among people who in some cases are not noticeably sick.

among the more than 600 passengers from the Diamond Princess cruise ship who have tested positive, about half had no obvious symptoms.

If the coronavirus becomes a true pandemic, a large proportion of the human population — a third, a half, two-thirds even — could become infected

Harvard epidemiologist Marc Lipsitch estimates that 40 to 70 percent of the human population could potentially be infected by the virus if it becomes pandemic. Not all of those people would get sick

The novel coronavirus may be particularly suited for stealth community transmission since its symptoms can be indistinguishable from those of a cold or flu, and testing capabilities are still being ramped up.

Experts estimate it takes about a week for the number of people infected in a given community to double. Based on that, it would likely take several weeks for a new infection cluster to be picked up by a local health department

By mid-March, he estimated, officials should know if there is community transmission and a true pandemic.

“I want to be clear that we are not seeing community spread here in the United States yet,” she said Friday. “But it’s very possible, even likely, that may eventually happen.”

“If a large number of countries are unsuccessful in preventing sustained multi-generation transmissions, then we could witness the next pandemic.”

A pandemic is a line in the sand, and every expert has a slightly different definition for when an outbreak crosses it. Generally, it means that there are self-sustaining lines of infection in multiple countries and continents — where the family tree of possible illness begins to encompass the entire population.

I think we’re not in as dire straits as we might be, and that’s because everyone is pulling together internationally.”

Public health experts are devising strategies on how to conserve N95 respirators, specialized masks that are in a limited supply amid surging demand.

“Extrapolating from some of the numbers we’ve seen on the impact to the health care system in China, it means we’ll have to surge fast.”

Thomas Sowell, at Stanford University, points to the British as responsible for no less than the invention of freedom. In Mr Sowell’s view, the British were a shining light of economic development, which other countries gradually learnt to imitate. (Fascinating new research explores a similar theory: that learning best practices from others is essential to growth and becomes harder the greater the cultural distance from economic leaders.)

Max Weber, a German sociologist, thought he had the question nailed. In his book “The Protestant Ethic and the Spirit of Capitalism”, published in 1905, Weber argued that religious factors were crucial for spurring European economic growth. Weber's view centred on Calvinism—a branch of Protestantism—and argued that it encouraged Europeans to be thrifty, rational, and concerned with material gain. Such values did not exist outside Europe where, according to Weber, material wealth was not revered and entrepreneurship was seen as subversive.

Jared Diamond, at the University of California, Los Angeles, suggests that environmental factors played a crucial role in the European take-off. Mr Diamond argues that Europe was uniquely endowed with domesticable plants and animals. Its population was also more immune to diseases. These factors led to higher productivity and, crucially, higher population density. The upshot? The development of institutions such as cities, bureaucracies and literate classes, which contributed to economic growth.

The development of "open science" in the 16th century helped with the spread of economically useful ideas

Another theory suggests that the Glorious Revolution in Britain of the 1680s, which reduced the power of the monarch, was a crucial stepping-stone in the country’s economic development. After the revolution, people became less worried that their profits would be summarily seized by the Crown, as they had been in the past. And so they became keener to work hard. This theory is at the heart of the book "Why Nations Fail", by economist Daron Acemoglu and professor of government James Robinson.

the causes of the Great Divergence are “overdetermined”. Many different factors intertwined to create European dominance—and no single factor would have been enough on its own. This conclusion might seem like a typical academic fudge. But the point is that the Great Divergence was not simply caused by European culture. Rather, it emerged because a business-friendly, open and innovative economy was created—mostly by accident.

A month later, I believe that the transmission of SARS-CoV-2 via aerosols matters much more than has been officially acknowledged to date.

This confirms the results of a study from late May (not peer-reviewed) in which Covid-19 patients were found to release SARS-CoV-2 simply by exhaling — without coughing or even talking. The authors of that study said the finding implied that airborne transmission “plays a major role” in spreading the virus.

Accepting these conclusions wouldn’t much change what is currently being recommended as best behavior. The strongest protection against SARS-CoV-2, whether the virus is mostly contained in droplets or in aerosols, essentially remains the same: Keep your distance and wear masks.

Rather, the recent findings are an important reminder to also be vigilant about opening windows and improving airflow indoors. And they are further evidence that the quality of masks and their fit matter, too.

here is no neat and no meaningful cutoff point — at 5 microns or any other size — between droplets and aerosols: All are tiny specks of liquid, their size ranging along a spectrum that goes from very small to really microscopic.

Yes, droplets tend to fly through the air like mini cannonballs and they fall to the ground rather quickly, while aerosols can float around for many hours.

The practical implications are plain:Social distancing really is important. It keeps us out of the most concentrated parts of other people’s respiratory plumes. So stay away from one another by one or two meters at least — though farther is safer.

“The smaller the exhaled droplets, the more important the short-range airborne route.”

Can you walk into an empty room and contract the virus if an infected person, now gone, was there before you? Perhaps, but probably only if the room is small and stuffy.

Can the virus waft up and down buildings via air ducts or pipes? Maybe, though that hasn’t been established.

another, recent, preprint (not peer reviewed) about the Diamond Princess concluded that “aerosol inhalation was likely the dominant contributor to Covid-19 transmission” among the ship’s passengers.

It might seem logical, or make intuitive sense, that larger droplets would contain more virus than do smaller aerosols — but they don’t.

The Lancet Respiratory Medicine that analyzed the aerosols produced by the coughs and exhaled breaths of patients with various respiratory infections found “a predominance of pathogens in small particles” (under 5 microns). “There is no evidence,” the study also concluded, “that some pathogens are carried only in large droplets.”

I believe that, taken together, much of the evidence gathered to date suggests that close-range transmission by aerosols is significant — possibly very significant, and certainly more significant than direct droplet spray.

But basic physics also says that a 5-micron droplet takes about a half-hour to drop to the floor from the mouth of an adult of average height — and during that time, the droplet can travel many meters on an air current. Droplets expelled in coughs or sneezes also travel much farther than one meter.

Wear a mask. Masks help block aerosols released by the wearer. Scientific evidence is also building that masks protect the wearer from breathing in aerosols around them.

When it comes to masks, size does matter.

My lab has been testing cloth masks on a mannequin, sucking in air through its mouth at a realistic rate. We found that even a bandanna loosely tied over its mouth and nose blocked half or more of aerosols larger than 2 microns from entering the mannequin.

Ventilation counts. Open windows and doors. Adjust dampers in air-conditioning and heating systems. Upgrade the filters in those systems. Add portable air cleaners, or install germicidal ultraviolet technologies to remove or kill virus particles in the air.

Avoid crowds. The more people around you, the more likely someone among them will be infected. Especially avoid crowds indoors, where aerosols can accumulate.

We also found that especially with very small aerosols — smaller than 1 micron — it is more effective to use a softer fabric (which is easier to fit tightly over the face) than a stiffer fabric (which, even if it is a better filter, tends to sit more awkwardly, creating gaps).

One study from 2013 found that surgical masks reduced exposure to flu viruses by between 10 percent and 98 percent (depending on the mask’s design).A recent paper found that surgical masks can completely block seasonal coronaviruses from getting into the air.To my knowledge, no similar study has been conducted for SARS-CoV-2 yet, but these findings might apply to this virus as well since it is similar to seasonal coronaviruses in size and structure.

What about the outbreak on the Diamond Princess cruise ship off Japan early this year? Some 712 of the 3,711 people on board became infected.

Consider the case of a restaurant in Guangzhou, southern China, at the beginning of the year, in which one diner infected with SARS-CoV-2 at one table spread the virus to a total of nine people seated at their table and two other tables.Yuguo Li, a professor of engineering at the University of Hong Kong, and colleagues analyzed video footage from the restaurant and in a preprint (not peer reviewed) published in April found no evidence of close contact between the diners.Droplets can’t account for transmission in this case, at least not among the people at the tables other than the infected person’s: The droplets would have fallen to the floor before reaching those tables.But the three tables were in a poorly ventilated section of the restaurant, and an air conditioning unit pushed air across them. Notably, too, no staff member and none of the other diners in the restaurant — including at two tables just beyond the air conditioner’s airstream — became infected.

Khanmigo allows students to make queries in the middle of lessons or videos and understands the context of what they’re watching. You can ask, “What is the significance of the green light in ‘The Great Gatsby?’ ” Heck, that one is still over my head. Same with help on factoring polynomials, including recognizing which step a student got wrong, not just knowing the answer is wrong, fixing ChatGPT’s math problem. Sci-fi becomes reality: a scalable super tutor.

Khanmigo saw a limited rollout on March 15, with a few thousand students paying a $20-a-month donation. Plugging into ChatGPT isn’t cheap. A wider rollout is planned for June 15, perhaps under $10 a month, less for those in need. The world has cheap tablets, so it shouldn’t be hard to add an Alexa-like voice and real-time videogame-like animations. Then the Diamond Age will be upon us.

Mr. Khan suggests, “There is no limit to learning. If you ask, ‘Why is the sky blue?’ you’ll get a short answer and then maybe, ‘But let’s get back to the mitochondria lesson.’ ” Mr. Khan thinks “average students can become exceptional students.”

Mr. Khan tells me, “We want to raise the ceiling, but also the floor.” He wants to provide his company’s AI-learning technology to “villages and other places with little or no teachers or tools. We can give everyone a tutor, everyone a writing coach.” That’s when education and society will really change.

Teaching will be transformed. Mr. Khan wants Khanmigo “to provide teachers in the U.S. and around the world an indispensable tool to make their lives better” by administering lessons and increasing communications between teachers and students. I would question any school that doesn’t encourage its use.

With this technology, arguments about classroom size and school choice will eventually fade away. Providing low-cost 21st-century Illustrated Primers to every student around the world will then become a moral obligation

If school boards and teachers unions in the U.S. don’t get in the way, maybe we’ll begin to see better headlines.

In the course of his five-and-a-half-year presidency, beginning in 1969, Nixon launched and managed five successive and overlapping wars — against the anti-Vietnam War movement, the news media, the Democrats, the justice system and, finally, against history itself.

All reflected a mind-set and a pattern of behavior that were uniquely and pervasively Nixon’s: a willingness to disregard the law for political advantage, and a quest for dirt and secrets about his opponents as an organizing principle of his presidency.

Long before the Watergate break-in, gumshoeing, burglary, wiretapping and political sabotage had become a way of life in the Nixon White House.

What was Watergate? It was Nixon’s five wars.

In 1970, he approved the top-secret Huston Plan, authorizing the CIA, the FBI and military intelligence units to intensify electronic surveillance of individuals identified as “domestic security threats.” The plan called for, among other things, intercepting mail and lifting restrictions on “surreptitious entry” — that is, break-ins or “black bag jobs.”

On June 17, 1971 — exactly one year before the Watergate break-in — Nixon met in the Oval Office with his chief of staff, H.R. “Bob” Haldeman, and national security adviser Henry Kissinger. At issue was a file about former president Lyndon Johnson’s handling of the 1968 bombing halt in Vietnam.

“You can blackmail Johnson on this stuff, and it might be worth doing,” Haldeman said, according to the tape of the meeting. “Yeah,” Kissinger said, “but Bob and I have been trying to put the damn thing together for three years.” They wanted the complete story of Johnson’s actions.

“Huston swears to God there’s a file on it at Brookings,” Haldeman said. “Bob,” Nixon said, “now you remember Huston’s plan? Implement it. . . . I mean, I want it implemented on a thievery basis. God damn it, get in and get those files. Blow the safe and get it.”

Though Ellsberg was already under indictment and charged with espionage, the team headed by Hunt and Liddy broke into the office of his psychiatrist, seeking information that might smear Ellsberg and undermine his credibility in the antiwar movement.

“You can’t drop it, Bob,” Nixon told Haldeman on June 29, 1971. “You can’t let the Jew steal that stuff and get away with it. You understand?”

In a July 3, 1971, conversation with Haldeman, he said: “The government is full of Jews. Second, most Jews are disloyal. You know what I mean? You have a Garment [White House counsel Leonard Garment] and a Kissinger and, frankly, a Safire [presidential speechwriter William Safire], and, by God, they’re exceptions. But Bob, generally speaking, you can’t trust the bastards. They turn on you.”

In a tape from the Oval Office on Feb. 22, 1971, Nixon said, “In the short run, it would be so much easier, wouldn’t it, to run this war in a dictatorial way, kill all the reporters and carry on the war.”

John N. Mitchell, Nixon’s campaign manager and confidante, met with Liddy at the Justice Department in early 1972, when Mitchell was attorney general. Liddy presented a $1 million plan, code-named “Gemstone,” for spying and sabotage during the upcoming presidential campaign.

In Nixon’s third war, he took the weapons in place — the Plumbers, wiretapping and burglary — and deployed them against the Democrats challenging his reelection.

Operation Diamond would neutralize antiwar protesters with mugging squads and kidnapping teams; Operation Coal would funnel cash to Rep. Shirley Chisholm, a black congresswoman from Brooklyn seeking the Democratic presidential nomination, in an effort to sow racial and gender discord in the party;

Operation Opal would use electronic surveillance against various targets, including the headquarters of Democratic presidential candidates Edmund Muskie and George McGovern; Operation Sapphire would station prostitutes on a yacht, wired for sound, off Miami Beach during the Democratic National Convention.

Mitchell approved a $250,000 version, according to Jeb Magruder, the deputy campaign manager. It included intelligence-gathering on the Democrats through wiretaps and burglaries.

They discussed a secret $350,000 stash of cash kept in the White House, the possibility of using priests to help hide payments to the burglars, “washing” the money though Las Vegas or New York bookmakers, and empaneling a new grand jury so everyone could plead the Fifth Amendment or claim memory failure. Finally, they decided to send Mitchell on an emergency fundraising mission.

On Oct. 10, 1972, we wrote a story in The Post outlining the extensive sabotage and spying operations of the Nixon campaign and White House, particularly against Muskie, and stating that the Watergate burglary was not an isolated event. The story said that at least 50 operatives had been involved in the espionage and sabotage, many of them under the direction of a young California lawyer named Donald Segretti; several days later, we reported that Segretti had been hired by Dwight Chapin, Nixon’s appointments secretary. (The Senate Watergate committee later found more than 50 saboteurs, including 22 who were paid by Segretti.)

A favored dirty trick that caused havoc at campaign stops involved sweeping up the shoes that Muskie aides left in hotel hallways to be polished, and then depositing them in a dumpster.

In a memo to Haldeman and Mitchell dated April 12, 1972, Patrick Buchanan and another Nixon aide wrote: “Our primary objective, to prevent Senator Muskie from sweeping the early primaries, locking up the convention in April, and uniting the Democratic Party behind him for the fall, has been achieved.”

“I’d really like to get Kennedy taped,” Nixon told Haldeman in April 1971. According to Haldeman’s 1994 book, “The Haldeman Diaries,” the president also wanted to have Kennedy photographed in compromising situations and leak the images to the press.

On Sept. 8, 1971, Nixon ordered Ehrlichman to direct the Internal Revenue Service to investigate the tax returns of all the likely Democratic presidential candidates, as well as Kennedy. “Are we going after their tax returns?” Nixon asked. “You know what I mean? There’s a lot of gold in them thar hills.”

The arrest of the Watergate burglars set in motion Nixon’s fourth war, against the American system of justice. It was a war of lies and hush money, a conspiracy that became necessary to conceal the roles of top officials and to hide the president’s campaign of illegal espionage and political sabotage, including the covert operations that Mitchell described as “the White House horrors” during the Watergate hearings: the Huston Plan, the Plumbers, the Ellsberg break-in, Liddy’s Gemstone plan and the proposed break-in at Brookings.

In a June 23, 1972, tape recording, six days after the arrests at the Watergate, Haldeman warned Nixon that “on the investigation, you know, the Democratic break-in thing, we’re back in the problem area, because the FBI is not under control . . . their investigation is now leading into some productive areas, because they’ve been able to trace the money.”

Haldeman said Mitchell had come up with a plan for the CIA to claim that national security secrets would be compromised if the FBI did not halt its Watergate investigation.

Nixon approved the scheme and ordered Haldeman to call in CIA Director Richard Helms and his deputy Vernon Walters. “Play it tough,” the president directed. “That’s the way they play it, and that’s the way we are going to play it.”

On March 21, 1973, in one of the most memorable Watergate exchanges caught on tape, Nixon met with his counsel, John W. Dean, who since the break-in had been tasked with coordinating the coverup. “We’re being blackmailed” by Hunt and the burglars, Dean reported, and more people “are going to start perjuring themselves.” “How much money do you need?” Nixon asked.

“I would say these people are going to cost a million dollars over the next two years,” Dean replied. “And you could get it in cash,” the president said. “I, I know where it could be gotten. I mean, it’s not easy, but it could be done.”

Mitchell later denied approving the plan. He testified that he told Magruder: “We don’t need this. I’m tired of hearing it.” By his own account, he did not object on the grounds that the plan was illegal.

Nixon’s final war, waged even to this day by some former aides and historical revisionists, aims to play down the significance of Watergate and present it as a blip on the president’s record. Nixon lived for 20 years after his resignation and worked tirelessly to minimize the scandal.

In his 1978 memoir “RN,” Nixon addressed his role in Watergate: “My actions and omissions, while regrettable and possibly indefensible, were not impeachable.” Twelve years later, in his book “In the Arena,” he decried a dozen “myths” about Watergate and claimed that he was innocent of many of the charges made against him. One myth, he said, was that he ordered the payment of hush money to Hunt and others. Yet, the March 21, 1973, tape shows that he ordered Dean to get the money 12 times.

Even now, there are old Nixon hands and defenders who dismiss the importance of Watergate or claim that key questions remain unanswered.

By August, Nixon’s impending impeachment in the House was a certainty, and a group of Republicans led by Sen. Barry Goldwater banded together to declare his presidency over. “Too many lies, too many crimes,” Goldwater said. On Aug. 7, the group visited Nixon at the White House. How many votes would he have in a Senate trial? the president asked. “I took kind of a nose count today,” Goldwater replied, “and I couldn’t find more than four very firm votes, and those would be from older Southerners. Some are very worried about what’s been going on, and are undecided, and I’m one of them.”

In his last remarks about Watergate as a senator, 77-year-old Sam Ervin, a revered constitutionalist respected by both parties, posed a final question: “Why was Watergate?” The president and his aides, Ervin answered, had “a lust for political power.” That lust, he explained, “blinded them to ethical considerations and legal requirements; to Aristotle’s aphorism that the good of man must be the end of politics.”

Nixon had lost his moral authority as president. His secret tapes — and what they reveal — will probably be his most lasting legacy. On them, he is heard talking almost endlessly about what would be good for him, his place in history and, above all, his grudges, animosities and schemes for revenge. The dog that never seems to bark is any discussion of what is good and necessary for the well-being of the nation.

By the time he was forced to resign, Nixon had turned his White House, to a remarkable extent, into a criminal enterprise.

“Always remember,” he said, “others may hate you, but those who hate you don’t win unless you hate them, and then you destroy yourself.” His hatred had brought about his downfall. Nixon apparently grasped this insight, but it was too late. He had already destroyed himself.

Doris knew nothing about raising children, nor much cared. The witheringly wry, worldly heiress was among the most celebrated women of her day, a six-foot glamour queen hounded by paparazzi, who brushed elbows with every midcentury icon from Jackie Kennedy to Elvis Presley, pronouncing Greta Garbo "boring" and, after dating Errol Flynn, theorizing that bisexual men made the best lovers: "I should know," she declared. "I've done exhausting research on the subject." As a child – and sole inheritor of her father Buck's $100 million fortune – she'd become famous as "the richest little girl in the world." She'd been raised by nannies in a chilly, silent Fifth Avenue mansion, with her parents taking little part in her upbringing; family lore holds that her father, on his deathbed in 1925, told 12-year-old Doris, "Trust no one." Now saddled with her pesky nephew Walker, watching him toss ketchup-covered tampons into her pool, Doris Duke regarded him with pity. He was desperate for love and attention, much like herself as a child. But Doris had her own fabulous life to live, and so she shipped Walker off to boarding school. "We were all too self-centered to be bothered with a problem child," she would later tell her cousin Angier St. George Biddle "Pony" Duke.

His grandmother's will had stipulated that if Walker left no heirs, upon his death his trust would be funneled into the Duke Endowment, a $2.8 billion foundation established by Buck Duke that nourishes, among other institutions, Duke University. The idea repulsed Walker: The very name that had given him such unearned bounty also stood for everything he felt he'd been deprived. "He despised Duke!" says longtime friend Mike Todd. "Duke University, Duke Foundation – everything Duke, he hated."

At school the twins had trouble connecting with classmates, few of whom were allowed over to the Inmans' mansion a second time after gaping at the guns, the explicit art and sometimes an eyeful of Walker, who preferred to be nude. Other kids went to summer camp, but the Inmans went to Abu Dhabi to bid millions at auctions; to Japan, where their father introduced them to friends who were supposedly yakuza; to Fiji, where Dad praised them as they dined on poisonous puffer fish. There were getaways aboard the Devine Decadence, which was docked in New Zealand. One day toward the end of second grade, when their father had yanked them out of school without warning, they told themselves it was for the best.

The past three years have been a struggle for the twins as they've grappled with their past. Before they were able to live with Daisha, they were sent to the Wyoming Behavioral Institute. The twins were suicidal, uncooperative and dangerously underweight. Therapist Jennifer Greenup had never seen such extreme emotional deprivation before. "If even a quarter of what they said happened to them happened, they are severely traumatized children," says Greenup, adding, "Their symptoms are real. Whether it's paranoia, lack of trust or hostility." Eventually the kids were able to move in with Daisha and began bonding, a triumph unto itself. But although they've taken positive steps, Greenup says the scale of their trauma is so great that she can't gauge their progress: "I can't say they're progressing well, because there's nothing to compare it to," she admits.

As for the kids' own plans, Patterson seems to hope for a quiet life. "I hope I don't have to live alone. But I actually don't mind. I'll just sit at Greenfield, fishing by my dad's little tomb, just talking about life," he says. "You can't trust anyone," he adds mournfully, repeating the words he learned from his father, which Walker learned from his aunt Doris, which she learned from her father, Buck Duke.