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US air strikes: White House explains drone policy

President Obama's top counter-terrorism advisor has given the most detailed explanation yet of America's use of drone attacks to kill suspected terrorists.

In a speech in Washington, John Brennan said the strikes by unmanned aircraft were helping to win the war against al-Qaeda.

The comments come in the week marking a year since Osama Bin Laden's death, as Steve Kingstone reports.

  • 01 May 2012