"I think that without a doubt, torture and enhanced interrogation techniques slowed down the hunt for bin Laden," said an Air Force interrogator who goes by the pseudonym Matthew Alexander and located Abu Musab al-Zarqawi, the leader of al Qaeda in Iraq, in 2006.
It now appears likely that several detainees had information about a key al Qaeda courier -- information that might have led authorities directly to bin Laden years ago. But
subjected to physical and psychological brutality, "they gave us the bare minimum amount of information they could get away with to get the pain to stop, or to mislead us," Alexander told The Huffington Post.
"We know that they didn’t give us everything, because they didn’t provide the real name, or the location, or somebody else who would know that information," he said.
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http://www.huffingtonpost.com/2011/05/06/torture-may-have-slowed-h_n_858642.html