AA, at the risk of dragging this on, the only way the people "in on the act" would keep their mouths shut this long would be if they were all culpable for what happened. That would be a strong incentive for silence.
True... But Walter also mentions a US Navy SEAL staying in a local hostelry and implies a possible link. I'll point to Wikileaks and say that, were he correct, we'd know just about everything about the operation by now...