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Glenn answered your first question here:
http://letters.salon.com/opinion/greenwald/2008/07/12/torture/permalink/840b2e05608cb528da4dc277d3f6d03e.html
And he has commented on that. http://http://letters.salon.com/opinion/greenwald/2008/07/03/al_haramain/permalink/87d3999e74adbe51b01f9db483b87666.html