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"People tend to conform their factual beliefs to ones that are consistent with their cultural outlook, their world view," Braman says. The Cultural Cognition Project has conducted several experiments to back that up. Participants in these experiments are asked to describe their cultural beliefs. Some embrace new technology, authority and free enterprise. They are labeled the "individualistic" group. Others are suspicious of authority or of commerce and industry. Braman calls them "communitarians." In one experiment, Braman queried these subjects about something unfamiliar to them: nanotechnology — new research into tiny, molecule-sized objects that could lead to novel products. "These two groups start to polarize as soon as you start to describe some of the potential benefits and harms," Braman says. The individualists tended to like nanotechnology. The communitarians generally viewed it as dangerous. Both groups made their decisions based on the same information. "It doesn't matter whether you show them negative or positive information, they reject the information that is contrary to what they would like to believe, and they glom onto the positive information," Braman says.

"Basically the reason that people react in a close-minded way to information is that the implications of it threaten their values," says Dan Kahan, a law professor at Yale University and a member of The Cultural Cognition Project. Kahan says people test new information against their preexisting view of how the world should work. "If the implication, the outcome, can affirm your values, you think about it in a much more open-minded way," he says. And if the information doesn't, you tend to reject it. In another experiment, people read a United Nations study about the dangers of global warming. Then the researchers told the participants that the solution to global warming is to regulate industrial pollution. Many in the individualistic group then rejected the climate science. But when more nuclear power was offered as the solution, says Braman, "they said, you know, it turns out global warming is a serious problem."And for the communitarians, climate danger seemed less serious if the only solution was more nuclear power.

Sen. Scott Brown (R-MA) broke with his party and voted with the Democrats. So did Sen. Olympia Snowe (R-ME). It had been uncertain earlier in the day whether any Republicans would help Democrats reach 60 votes and overcome the threat of a GOP filibuster. With Sen. Frank Lautenberg (D-NJ) out of the Senate after being diagnosed with stomach cancer, Democrats needed at least two Republican votes to overcome a GOP filibuster threat. "Work with us on this," Senate Majority Leader Harry Reid said moments before the vote. "Show us you're serious about legislating." Reid also warned Republicans: Fail to support this bill, and the minority would "confirm their reputation as the 'Party of No.'" The bill, which is much smaller than some original proposals, would exempt businesses from paying Social Security payroll taxes this year after hiring from the nation's pool of millions of unemployed. The Build-America Bonds Act of 2009 would be renewed by the jobs bill. The scaled-down bill would also extend some tax breaks for small businesses, renew highway programs through December, and put $20 billion in the highway trust fund.