Edited sentence: If he is dead the location of his body has been hidden.If he was anchored then the Navy may know within a square mile where he is, but there is no certainty that the person buried there is Osama bin Laden.May 3 2011: There is a question as to the proof that Osama bin Laden is dead.No body no definitive evidence.So currently the status is 'Osama bin Laden location unknown'.The White House claims he was buried somewhere at sea.Unless someone buried a GPS device with him it is unlikely that his current location will ever be known