President Obama speaks in the Rose Garden on Wednesday, flanked by U.S. Chamber of Commerce Chief Operating Officer David Chavern (left) and AFL-CIO President Richard Trumka (right). Business groups and unions are just two of the groups Obama will try to please with his jobs plan next week. Evan Vucci/AP hide caption

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Former Utah Gov. Jon Huntsman, shown speaking at an American Legion Post in Nashua, N.H., last month, is campaigning again in the state this week. The Republican White House hopeful so far hasn't run any TV ads in the state. Cheryl Senter/AP hide caption

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The brain "seems to be specialized in alerting us to things that are emotionally important to us — either positive or because they're scary," a scientist says. iStockphoto.com hide caption

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Bacteroides are microbes that dominate the guts of people who eat more animal protein and fat. National Institute of Environmental Health Sciences hide caption

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A screen grab of Syrian Attorney General Anan Bakkor, during a video he made where he resigned from his post and revealed that he was forced to cover up deaths related to the popular uprising in the country. YouTube hide caption

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Matthew VanDyke walks toward his former cell as he takes journalists on a tour of the Abu Salim prison in the Libyan capital, Tripoli, on Tuesday. Francisco Leong/AFP/Getty Images hide caption

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President Obama and former Secretary of State Colin Powell at the White House on Dec. 1, 2010. Saul Loeb /AFP/Getty Images hide caption

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Former Secretary of State Colin Powell, during an address in Washington, D.C., on March 1, 2010. Jim Watson /AFP/Getty Images hide caption

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House Majority Leader Eric Cantor (R-VA) told members of his party that the jobs crisis would be at the top of their agenda this fall. Karen Bleier/AFP/Getty Images hide caption

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A silicone gel implant (left) and a saline gel implant. The FDA agreed to let implants return to the market in 2006, but stipulated that manufacturers track long-term side effects. Spencer Platt/Getty Images hide caption

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