At a press conference, President Bush discusses information gained from the interrogation of 9/11 mastermind reveals Khalid Shaikh Mohammed (KSM). In an apparent reference to the 9/11 attacks, Bush says that KSM “described the design of plane attacks on buildings inside the US and how operatives were directed to carry them out.… He told us the operatives had been instructed to ensure that the explosives went off at a point that was high enough to prevent people trapped above from escaping.” [New York Times, 9/15/2006] It is not clear if Bush really meant to say explosives or if this was a verbal slip-up.