President Barack Obama, right, is photographed with Britain's Prime Minister David Cameron as he arrives at 10 Downing Street, Cameron's official residence, in London, Wednesday, May 25, 2011. Obama ... more 
President Barack Obama, right, is photographed with Britain's Prime Minister David Cameron as he arrives at 10 Downing Street, Cameron's official residence, in London, Wednesday, May 25, 2011. Obama is plunging back into the complex security debates over Afghanistan, Libya and uprisings in the Middle East, while trying to reassure European allies that they still are valued partners in U.S. foreign policy. less 
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Associated Press | Photo By Carolyn Kaster
Wed, May 25, 2011 6:42 AM EDT