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Summary Britain's phone-hacking scandal spiraled up further as a second top policeman has quit.
Prime Minister David Cameron has called an emergency parliament session and cut short his Africa trip.Assistant Commissioner John Yates, who refused to reopen an investigation into the now-defunct News of the World tabloid in 2009, resigned a day after the departure of John Stephenson, the chief of Londons Metropolitan Police.Yates had expressed regret last week over his earlier decision that the inquiry into the Rupert Murdoch-owned paper did not need to be revived, but pinned the blame on Murdochs empire for failing to cooperate.Yates was one of the Mets most senior officers and had responsibility for special operations.As the scandal kept scything through the heart of the British establishment, Cameron was forced to defend his own position after Stephenson took a swipe at his own decision to hire a former News of the World editor as his spokesman.Cameron had already cut short his trip to Africa from four days to two, and after demands from the opposition Labour Party he said that he now wanted to delay parliaments summer break for a day to give a statement to MPs.But Labour leader Ed Miliband piled pressure on Cameron -- who has also faced criticism for his social contacts with Murdoch aides -- by calling on the Conservative premier to apologise for hiring Coulson.
