Andy Coulson, the former spokesman for Britain's Prime Minister David Cameron, leaves a police station after being bailed, in South London, July 8, 2011. Police arrested David Cameron's former spokesman on Friday over the scandal that has shut down Rupert Murdoch's News of the World, forcing the prime minister to defend his judgment while promising new controls on the British press. REUTERS/Olivia Harris (BRITAIN - Tags: POLITICS CRIME LAW BUSINESS MEDIA)