Bin Laden warns US not to kill alleged 9/11 chief

An undated photo of al Qaida leader Osama bin Laden, in Afghanistan. (AP)

March 25, 2010 12:41:56 PM PDT
Osama bin Laden threatened in a new message released Thursday to kill any Americans al-Qaida captures if the U.S. executes the self-professed mastermind of the Sept. 11 attacks or other al-Qaida suspects.