DNA samples collected from his body were compared to a comprehensive DNA profile derived from bin Laden’s large extended family. Based on that analysis, the DNA is unquestionably his. The possibility of a mistaken identity on the basis of this analysis is approximately one in 11.8 quadrillion. I’ll let you count the zeroes.
— Senior U.S. intelligence official, briefing reporters Saturday on the government’s certainty that the man killed by Navy SEALs a week ago was, in fact, Osama bin Laden