The kings of positive feelings: Paraguay's citizens were found to have the most positive things to say about their lives, according to a recent poll. Here, soccer fans cheer for Paraguay's Olimpia team last year. Nelson Antoine/AP hide caption

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U.S. and Canadian fans attend the women's hockey gold medal game in Sochi Thursday. A recent Gallup poll finds that Americans see Canada in the most favorable light, compared to other countries. Bruce Bennett/Getty Images hide caption

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A display of a series of skeletons showing the evolution of humans at the Peabody Museum, New Haven, Conn., circa 1935. Hulton Archive/Getty Images hide caption

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Demonstrators march toward the U.S. Capitol on Saturday to demand that Congress investigate the National Security Agency's mass surveillance programs. Fang Zhe/Xinhua/Landov hide caption

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Speaker of the House John Boehner, R-Ohio (center), with House GOP leaders, speaks briefly to reporters on Oct. 1. Joining Boehner are (from left) House Majority Leader Eric Cantor, R-Va., House Majority Whip Kevin McCarthy, R-Calif., and Rep. Cathy McMorris Rodgers, R-Wash., the Republican conference chairwoman. J. Scott Applewhite/AP hide caption

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A new survey shows that a majority of Americans want Congress to keep the government running and deal with Obamacare separately. J. Scott Applewhite/AP hide caption

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Mitt Romney speaks Monday at a campaign event at Avon Lake High School in Avon Lake, Ohio. Tony Dejak/AP hide caption

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Early voting has begun in the battleground states of Ohio, Virginia and Iowa. Voting booths were set up for early voting Thursday at the Black Hawk County Courthouse in Waterloo, Iowa. Ahead of Wednesday's first presidential debate, an NPR poll finds President Obama with a 7-point lead nationally, but his GOP challenger, Mitt Romney, is within striking distance. Scott Olson/Getty Images hide caption

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