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Henry Crumpton probably knows more about the fight against al-Qaeda and the Taleban than anyone else.
He was the first American into Afghanistan, slipping into the country in the dead of night to mastermind the American onslaught.
Crumpton, and his chief Afghan ally, explain to 60 Minutes reporter Lara Logan how they wiped out the Taleban and what has gone wrong since.
Reporter: Lara Logan
CBS 60 Minutes