David Cameron, Barack Obama News Conference

WASHINGTON - JULY 20: British Prime Minister David Cameron (L) and U.S. President Barack Obama hold a joint news conference in the East Room of the White House July 20, 2010 in Washington, DC. In his first official visit to the White House and the U.S. Capitol, Cameron said he will work to redefine the 'special relationship' between the United States and Britain. The two leaders were expected to have discussed the BP oil spill in the Gulf of Mexico, the ongoing war in Afghanistan and the release of Lockerbie bomber, Abdelbaset al-Megrahi. (Photo by Oli Scarff/Getty Images)