Cameron, de visita oficial en la Casa Blanca
US President Barack Obama (C-L) and British Prime Minister David Cameron (C-R) inspect the honor guards during a welcoming ceremony at the White House in Washington, DC, on March 14, 2012. AFP PHOTO/Jim Watson
U.S. President Barack Obama and British Prime Minister David Cameron talk during their Oval Office meeting at the White House in Washington March, 14, 2012. REUTERS/Doug Mills/Pool (UNITED STATES - Tags: POLITICS)
U.S. President Barack Obama and British Prime Minister David Cameron each eat a hot dog at a first round "First Four" game of the NCAA Division I Men's Basketball Tournament between Mississippi Valley State and Western Kentucky at the University of Dayton Arena in Ohio, March 13, 2012. REUTERS/Larry Downing (UNITED STATES)