Two of the four leaders allegedly behind the al Qaeda plot to blow up a Northwest Airlines passenger jet over Detroit were released by the U.S. from the Guantanamo prison in November, 2007, according to American officials and Department of Defense documents. Al Qaeda claimed responsibility for the Northwest bombing in a Monday statement that vowed more attacks on Americans.....
http://abcnews.go.com/Blotter/men-believed-northwest-airlines-plot-set-free/story?id=9434065
http://abcnews.go.com/Blotter/men-believed-northwest-airlines-plot-set-free/story?id=9434065