navy s.e.a.l.s whose precision work accomplished an almost impossible mission. we want to head right away for the very latest details at this hour to martha raddatz. she knows the men, she knows their methods and she knows what they did in the last 24 hours. martha raddatz, part of our team coverage tonight. martha, good evening to you. >> reporter: good evening, diane. imagine being part of that navy s.e.a.l. team on the hunt to kill or capture bin laden and then come face-to-face with him. on a near moonless night packed into two specially outfitted blackhawk helicopters, the most elite navy special operations team, s.e.a.l. team 6, hand picked and experienced, headed for the mission of their lives. the target, this sprawling compound surrounded by walls reaching nearly 20 feet high at points. the s.e.a.l. team, 30 to 40 men, flew low beneath the radar and