flying fast and quietly, the aerial armada crosses the pakistani border untexted.heir target, the strange walled compound lying just one mile from a major pakistani military facility in the city of abotabad. in pakistani officials have been notified for fear someone will compromise the mission or tip off thenmy. >> we made the decision that we would not inform them and that we would conduct this operation unilaterally on the part of the united states. >> conditions on this night are near perfect. there is no moon. visibility is around 3 miles. the relatively silent choppers are virtually invisible against the clear black sky. the night stalkers are care arerying seal team six to its rendezvous with destiny. >> it was as dark a night as we could choose so that the helicopters could go in with minimal possibility of being sioux sighted and identify. >> just as they reach their target disaster nearly strikes. one of the modified blackhawks, perhaps weighed down by the additional stealth snap on technology clearly seen in the crash photos loses lift as it was about to