Mizell, who gathers data on security and terrorist incidents, says precedent for such attacks exists. He has recorded 43 cases involving 14 terrorist groups in which remote-control delivery systems were "either threatened, developed, or actually utilized." Only last year it was reported, for example, that Osama bin Laden considered using remote-control airplanes packed with explosives to kill President George W. Bush and other heads of state at the G-8 summit in Genoa, Italy.
And as his earlier link to the WH website about the summit said, it was held in July, 2001