President Obama marked World AIDS Day Thursday by announcing plans to boost U.S. efforts to fight AIDS at home and abroad. Evan Vucci/AP hide caption

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President Obama received a warm welcome at Scranton High School in Scranton, Pa., Wednesday. A surge in Hispanic voters in that state could make his chances of winning it a little more likely. Carolyn Kaster/AP hide caption

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From left, GOP presidential candidates Newt Gingrich, Ron Paul, Rick Perry and Mitt Romney participate in the Fox News/Google GOP debate at the Orange County Convention Center in September. Since then, the candidates have gotten tougher on each other. Mark Wilson/Getty Images hide caption

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Demonstrators in London marched outside the Houses of Parliament on Wednesday to protest against pension cuts. The issue has stirred demonstrations in many parts of Europe and the U.S. Adrian Dennis/AFP/Getty Images hide caption

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Secretary of State Hillary Rodham Clinton and pro-democracy leader Aung San Suu Kyi at the U.S. Chief of Mission Residence in Rangoon, Myanmar, earlier today (Dec. 1, 2011). Saul Loeb/Pool/AP hide caption

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During a speech delivered Thursday in Toulon, France, French President Nicolas Sarkozy says that he and German Chancellor Angela Merkel will be announcing new measures to guarantee the future of Europe. Claude Paris/AP hide caption

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Park Jong-kun's Twitter profile picture — which shows him against a backdrop of the North Korean flag — may violate South Korea's strict National Security Law. The 24-year-old South Korean is also under investigation for retweeting North Korean propaganda. Courtesy Park Jong-kun hide caption

itoggle caption Courtesy Park Jong-kun

German Chancellor Angela Merkel speaks with Mario Draghi, president of the European Central Bank, on the second day of the G20 Summit in France. Chris Ratcliffe/Getty Images hide caption

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