**FILE** Britain Prime Minister David Cameron (center) leaves 10 Downing Street, with unidentified aides, for the House of Commons for the weekly session of Prime Minister's Question Time in the House of Commons in London on April 24, 2013. (Associated Press)
**FILE** Britain Prime Minister David Cameron (center) leaves 10 Downing Street, with unidentified aides, for the House of Commons for the weekly session of Prime Minister's Question Time in the House of Commons in London on April 24, 2013. (Associated Press)
British Prime Minister David Cameron (center), Deputy Prime Minister Nick Clegg (left) and Chancellor of the Exchequer George Osborne (right) are pictured in Britain's House of Commons in August 2011. (Associated Press)
Britain Prime Minister David Cameron (center) speaks Jan. 18, 2013, to the House of Commons in London about the hostage situation in Algeria in this image taken from television. (Associated Press)
Britain Prime Minister David Cameron (center) speaks Jan. 18, 2013, to the House of Commons in London about the hostage situation in Algeria in this image taken from television. (Associated Press)
BBC Director-General George Entwistle gives evidence on the Jimmy Savile sexual-abuse case to the Culture, Media and Sport Committee of the House of Commons in London on Tuesday, Oct. 23, 2012. (AP Photo/Press Association)
BBC Director-General George Entwistle gives evidence on the Jimmy Savile sexual-abuse case to the Culture, Media and Sport Committee of the House of Commons in London on Tuesday, Oct. 23, 2012. (AP Photo/Press Association)
Britain's Queen Elizabeth II and Prince Philip are seen on the Royal Barge as they pass the House of Commons and Big Ben during the Thames Diamond Jubilee River Pageant in London on Sunday, June 3, 2012. (AP Photo/Tim Hales)
Britain's Queen Elizabeth II (right) waves after addressing both houses of Parliament in Westminster Hall in London on Tuesday, March 20, 2012, to mark her Diamond Jubilee on the throne. Baroness D'Souza (foreground left), speaker of the House of Lords, and John Bercow (foreground center), speaker of the House of Commons, were among the dignitaries in attendance. (AP Photo/Kirsty Wigglesworth, Pool)
