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Britian's prime Minister David Cameron addresses media representatives at 10 Downing Street in London on May 23, 2013, a day after a soldier who was hacked to death in a London street by two suspected Islamist extremists. Britain's national security chiefs met as counter-terrorism police investigated the murder of a soldier who was hacked to death in a London street by two suspected Islamist extremists. The suspects were shot by police after the gruesome attack and spent the night in separate hospitals under armed guard. (Photo credit should read LEON NEAL/AFP/Getty Images)
Britian's prime Minister David Cameron addresses media representatives at 10 Downing Street in London on May 23, 2013, a day after a soldier who was hacked to death in a London street by two suspected Islamist extremists. Britain's national security chiefs met as counter-terrorism police investigated the murder of a soldier who was hacked to death in a London street by two suspected Islamist extremists. The suspects were shot by police after the gruesome attack and spent the night in separate hospitals under armed guard. (Photo credit should read LEON NEAL/AFP/Getty Images)

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Cameron cracks down on child porn

British PM David Cameron is renewing efforts to end child pornography and exploitation online. CNN's Dan Rivers reports.

Cameron cracks down on child porn

British PM David Cameron is renewing efforts to end child pornography and exploitation online. CNN's Dan Rivers reports.