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In remarks at the University of San Diego, Federal Reserve Bank of San Francisco President Janet Yellen said that rather than experiencing a "V-shaped recovery," the economy will continue to be sluggish and won't be operating at its full potential until 2013. As reasons, she cited consumer anxiety due to the high unemployment rate; a housing sector that "could weaken again"; "very nervous and exceedingly cost-conscious" businesses; and a commercial real estate market that won't contribute to growth "for some time." For workers, though, her prognosis was particularly dire: the labor market will be slow to recover because businesses have learned that they can cut workers yet maintain output.

In his new book, "The Double Helix and the Law of Evidence" (Harvard University Press), Kaye focuses on the intersection of science and law, and emphasizes that DNA evidence is merely information. "There's a popular perception that with DNA, you get results," Kaye said. "You're either guilty or innocent, and the DNA speaks the truth. That goes too far. DNA is a tool. Perhaps in many cases it's open and shut, in other cases it's not. There's ambiguity."

One of the book's key themes is that using science in court is hard to do right. "It requires lawyers and judges to understand a lot about the science," Kaye noted. "They don't have to be scientists or technicians, but they do have to know enough to understand what's going on and whether the statements that experts are making are well-founded. The lawyers need to be able to translate that information into a form that a judge or a jury can understand." Kaye also believes that lawyers need to better understand statistics and probability, an area that has traditionally been neglected in law school curricula. His book attempts to close this gap in understanding with several sections on genetic science and probability. The book also contends that scientists, too, have contributed to the false sense of certainty, when they are so often led by either side of one particular case to take an extreme position. Scientists need to approach their role as experts less as partisans and more as defenders of truth. Aiming to be a definitive history of the use of DNA evidence, "The Double Helix and the Law of Evidence" chronicles precedent-setting criminal trials, battles among factions of the scientific community and a multitude of issues with the use of probability and statistics related to DNA. From the Simpson trial to the search for the last Russian Tsar, Kaye tells the story of how DNA science has impacted society. He delves into the history of the application of DNA science and probability within the legal system and depicts its advances and setbacks.

1. The private sector will create enough jobs, if the government gets out of the way. Possibly, but when? Right now more than 2.7 percent of our entire population has been unemployed for more than 26 weeks -- an all time-record since the government began compiling that data in 1948. No one is predicting that the private sector is about to go on a hiring spree. In fact, many analysts think it'll take more than a decade for the labor market to fully recover. You can't tell the unemployed to wait ten years. Counting on a private sector market miracle is an exercise in faith-based economics. There simply is no evidence that the private sector can create on its own the colossal number of jobs we need. If we wanted to go down to a real unemployment rate of 5% ("full employment"), we'd have to create about 22.4 million jobs. (See Leo Hindery's excellent accounting.) We'd need over 100,000 new jobs every month just to keep up with population growth. It's not fair to the unemployed to pray for private sector jobs that might never come through. 2. We can't afford it. Funding public sector jobs will explode the deficit and the country will go broke: This argument always makes intuitive sense because most of us think of the federal budget as a giant version of our household budget - we've got to balance the books, right? I'd suggest we leave that analogy behind. Governments just don't work the same way as families do. We have to look at the hard realities of unemployment, taxes and deficits. For instance, every unemployed worker is someone who is not paying taxes. If we're not collecting taxes from the unemployed, then we've got to collect more taxes from everyone who is working. Either that, or we have to cut back on services. If we go with option one and raise taxes on middle and low income earners, they'll have less money to spend on goods and services. When demand goes down, businesses contract--meaning layoffs in the private sector. But if we go with option two and cut government services, we'll have to lay off public sector workers. Now we won't be collecting their taxes, and the downward cycle continues. Plus, we don't get the services. Or, we could spend the money to create the jobs and just let the deficit rise a bit more. The very thought makes politicians and the public weak in the knees. But in fact this would start a virtuous cycle that would eventually reduce the deficit: Our newly reemployed people start paying taxes again. And with their increased income, they start buying more goods and services. This new demand leads to more hiring in the private sector. These freshly hired private sector workers start paying taxes too. The federal budget swells with new revenue, and the deficit drops. But let's say you just can't stomach letting the deficit rise right now. You think the government is really out of money--or maybe you hate deficits in principle. There's an easy solution to your problem. Place a windfall profits tax on Wall Street bonuses. Impose a steep tax on people collecting $3 million or more. (Another way to do it is to tax the financial transactions involved in speculative investments by Wall Street and the super-rich.) After all, those fat bonuses are unearned: The entire financial sector is still being bankrolled by the taxpayers, who just doled out $10 trillion (not billion) in loans and guarantees. Besides, taxing the super-rich doesn't put a dent in demand for goods and services the way taxing other people does. The rich can only buy so much. The rest goes into investment, much of it speculative. So a tax on the super rich reduces demand for the very casino type investments that got us into this mess.

3. Private sector jobs are better that public sector jobs. Why is that? There is a widely shared perception that having a public job is like being on the dole, while having a private sector job is righteous. Maybe people sense that in the private sector you are competing to sell your goods and services in the rough and tumble of the marketplace--and so you must be producing items that buyers want and need. Government jobs are shielded from market forces. But think about some of our greatest public employment efforts. Was there anything wrong with the government workers at NASA who landed us on the moon? Or with the public sector workers in the Manhattan project charged with winning World War II? Are teachers at public universities somehow less worthy than those in private universities? Let's be honest: a good job is one that contributes to the well-being of society and that provides a fair wage and benefits. During an employment crisis, those jobs might best come directly from federal employment or indirectly through federal contracts and grants to state governments. This myth also includes the notion that the private sector is more efficient than the public sector. Sometimes it is, but mostly it isn't. Take health care, which accounts for nearly 17 percent of our entire economy. Medicare is a relative model of efficiency, with much lower administrative costs than private health insurers. The average private insurance company worker is far less productive and efficient than an equivalent federal employee working for Medicare. (See study by Himmelstein, Woolhandler and Wolfe) 4. Big government suffocates our freedom. The smaller the central government, the better -- period, the end. This is the hardest argument to refute because it is about ideology not facts. Simply put, many Americans believe that the federal government is bad by definition. Some don't like any government at all. Others think power should reside mostly with state governments. This idea goes all the way back to the anti-federalists led by Thomas Jefferson, who feared that yeomen farmers would be ruled (and feasted upon) by far-away economic elites who controlled the nation's money and wealth. In modern times this has turned into a fear of a totalitarian state with the power to tell us what to do and even deny us our most basic liberties. A government that creates millions of jobs could be seen as a government that's taking over the economy (like taking over GM). It just gets bigger and more intrusive. And more corrupt and pork-ridden. (There's no denying we've got some federal corruption, but again the private sector is hardly immune to the problem. In fact, it lobbies for the pork each and every day.) It's probably impossible to convince anyone who hates big government to change their minds. But we need to consider what state governments can and cannot do to create jobs. Basically, their hands are tied precisely because they are not permitted by our federal constitution to run up debt. So when tax revenues plunge (as they still are doing) states have to cut back services and/or increase taxes. In effect, the states act as anti-stimulus programs. They are laying off workers and will continue to do so until either the private sector or the federal government creates many more jobs. Unlike the feds, states are in no position to regulate Wall Street. They're not big enough, not strong enough and can easily be played off against each other. While many fear big government, I fear high unemployment even more. That's because the Petri dish for real totalitarianism is high unemployment -- not the relatively benign big government we've experienced in America. When people don't have jobs and see no prospect for finding them, they get desperate -- maybe desperate enough to follow leaders who whip up hatred and trample on people's rights in their quest for power. Violent oppression of minority groups often flows from high unemployment. So does war. No thanks. I'll take a government that puts people to work even if it has to hire 10 million more workers itself. We don't have to sacrifice freedom to put people to work. We just have to muster the will to hire them.

By combining a hurricane model and coupled ocean-atmosphere general circulation model to investigate the early Pliocene, Emanuel, Brierley and co-author Alexey Fedorov observed how vertical ocean mixing by hurricanes near the equator caused shallow parcels of water to heat up and later resurface in the eastern equatorial Pacific as part of the ocean wind-driven circulation. The researchers conclude from this pattern that frequent hurricanes in the central Pacific likely strengthened the warm pool in the eastern equatorial Pacific, which in turn increased hurricane frequency — an interaction described by Emanuel as a “two-way feedback process.”�The researchers believe that in addition to creating more hurricanes, the intense hurricane activity likely created a permanent El Nino like state in which very warm water in the eastern Pacific near the equator extended to higher latitudes. The El Nino weather pattern, which is caused when warm water replaces cold water in the Pacific, can impact the global climate by intermittently altering atmospheric circulation, temperature and precipitation patterns.The research suggests that Earth’s climate system may have at least two states — the one we currently live in that has relatively few tropical cyclones and relatively cold water, including in the eastern part of the Pacific, and the one during the Pliocene that featured warm sea surface temperatures, permanent El Nino conditions and high tropical cyclone activity.Although the paper does not suggest a direct link with current climate models, Fedorov said it is possible that future global warming could cause Earth to transition into a different equilibrium state that has more hurricanes and permanent El Nino conditions. “So far, there is no evidence in our simulations that this transition is going to occur at least in the next century. However, it’s still possible that the condition can occur in the future.”�Whether our future world is characterized by a mean state that is more El Nino-like remains one of the most important unanswered questions in climate dynamics, according to Matt Huber, a professor in Purdue University’s Department of Earth and Atmospheric Sciences. The Pliocene was a warmer time than now with high carbon dioxide levels. The present study found that hurricanes influenced by weakened atmospheric circulation — possibly related to high levels of carbon dioxide — contributed to very warm temperatures in the Pacific Ocean, which in turn led to more frequent and intense hurricanes. The research indicates that Earth’s climate may have multiple states based on this feedback cycle, meaning that the climate could change qualitatively in response to the effects of global warming.

Trade's effect on military conflict is one of the most important issues in international relations. The last decade has seen research and debate into the role of trade intensify; Liberals argue that trade brings peace, neo-realists and neo-Marxists reason that trade brings conflict, and classical realists contend that trade has no impact. This debate is not just academic: some key U.S. policymakers (Senator McCain and former President Clinton for instance) believe that trade brings peace, a view that contributes to their support for free trade. Economists developed bilateral trade models in isolation from models of interstate conflict, which were the work of political scientists. These two types of models handle distance between nations differently. Bilateral trade takes its cue from Isaac Newton's formula for the gravitational attraction between two objects: the larger the objects' masses and the shorter the distance between them, the larger the attraction. So the larger the trade partners' economies and the closer they are to one another, the greater their trade. However, conflict models instead incorporate shared borders by land or close distance over water (contiguity) - stressing the role of border disputes in sparking interstate conflict. Distance is included in conflict equations based on the idea that an army gets weaker the farther it strays from its base, but what point in a nation to pick for the trade and conflict equation is unclear. Often theorists use the distance between capital cities, which is problematic: wars generally happen around borders where armies are often based, and capitals have historically changed without this altering the likelihood of war between the nation and its neighbours. The authors suggest that the trade data set plugged into trade and conflict equations is critical. This type of data often contains gaps - there are a number of reasons why data from a particular nation might be unavailable, inevitably leaving researchers to make assumptions. The majority of trade and conflict studies define conflict to include all types of militarised interstate disputes (MIDs). But Keshk, Reuveny, and Pollins question the results generated when different conflict definitions are chosen. For instance, a conflict such as a threat to use nuclear weapons would not cause fatalities, but may still have some impact on trade and vice versa. In fact, by altering the data treatment and assumptions in the equation, the authors generated a variety of results, which supported several different theoretical viewpoints. The authors suggest that future research should investigate questions of missing bilateral trade data, and attempt a more subtle use of the meaning of "military conflict". Researchers might also develop distance and contiguity measures at a more sophisticated level. "Any signal that trade brings peace remains weak and inconsistent, regardless of the way proximity is modelled in the conflict equation. The signal that conflict reduces trade, in contrast, is strong and consistent," say the authors. "Any study of the effect of trade on conflict that ignores the reverse fact is practically guaranteed to produce estimates that contain simultaneity bias." Studies of the relationship between international trade and military conflict can be traced back many centuries, particularly in the works of luminaries such as de Montesquieu, Immanuel Kant, John Hobson, Vladimir Lenin, Henry Morgenthau, Kenneth Waltz, Frederic List, and Albert Hirschman. This latest study emphasises that international politics are affecting trade between nation pairs, while it is far less obvious whether trade systematically affects politics. "To our colleagues from the liberal camp we would like to say that we still believe there are limited circumstances in which more trade may help lead countries to more peaceful resolutions of their differences, particularly if they are already at peace," the authors state. "However, it is past time for academics and policymakers to look beyond the naive claim that the cultivation of trade ties will always and everywhere produce a more peaceful world."

University of Edinburgh law lecturer Andres Guadamuz wrote a blog entry this week highlighting some particularly troubling aspects of the IIPA's 301 recommendations. The organization has condemned Indonesia and several other countries for encouraging government adoption of open source software. According to the IIPA, official government endorsements of open source software create "trade barriers" and restrict "equitable market access" for software companies. The profound absurdity of this accusation is exacerbated by the fact that Indonesia's move towards open source software was almost entirely motivated by a desire to eliminate the use of pirated software within the government IT infrastructure. It's important to understand that Indonesia has not mandated the adoption of open source software or barred government agencies from purchasing proprietary commercial software. The Indonesian government issued a statement in 2009 informing municipal governments that they had to stop using pirated software. The statement said that government agencies must either purchase legally licensed commercial software or switch to free and open source alternatives in order to comply with copyright law. This attempt by Indonesia to promote legal software procurement processes by endorsing the viability of open source software has apparently angered the IIPA. In its 301 recommendations for Indonesia, the IIPA demands that the government rescind its 2009 statement. According to the IIPA, Indonesia's policy "weakens the software industry and undermines its long-term competitiveness" because open source software "encourages a mindset that does not give due consideration to the value to intellectual creations [and] fails to build respect for intellectual property rights." The number of ways in which the IIPA's statements regarding open source software are egregiously misleading and dishonest are too numerous to count. The IIPA seems to have completely missed the fact that there is a very robust ecosystem of commercial software vendors in the open source software market and that open source software is at the heart of some of the most popular consumer electronics products that are sold in the United States. It has clearly become an important part of the US software economy and increasingly serves as an enabler of innovation and technological progress. In light of the profitability of Red Hat and other open source leaders, it seems absurd to contend that open source software adoption will weaken the software industry or reduce its competitiveness. In fact, the emergence of open source software has contributed to creating a more competitive landscape in the software industry by offering alternative business models that enable smaller companies to gain traction against the dominant incumbent players. The IIPA's position is profoundly hypocritical, because many parts of the US government, including the Department of Defense, have issued their own memos endorsing open source software adoption. The IIPA's disingenuous move to equate open source software with piracy reeks of desperation. The BSA and other IIPA members are likely losing sleep over open source software because that development model and approach to licensing will empower developing countries to build their own domestic IT industries, eliminating the need for them to tithe to American software giants. It's another failing of the 301 review, which Big Content wants used to coerce other countries into adopting ever-more-stringent copyright laws.