President Barack Obama, right, and British Prime Minister David Cameron, left, talk during their meeting in the Oval Office of the White House in Washington on Tuesday, July 20, 2010. (AP Photo/Pablo Martinez Monsivais)

Photo by: Pablo Martinez Monsivais

President Barack Obama, right, and British Prime Minister David Cameron, left, talk during their meeting in the Oval Office of the White House in Washington on Tuesday, July 20, 2010. (AP Photo/Pablo Martinez Monsivais)