Osama's killing raises human rights questions

The startling news that United States special forces had found and killed the world's most wanted terrorist, Osama bin Laden, raced around the world in a flash. Spontaneous celebrations broke out in the streets of America, with chanting, flag-waving and singing of patriotic anthems. But now it's been revealed the dead man was unarmed, questions are being asked about whether he should have been captured alive and put on trial.

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