Originally Posted by steveholt

Was on LHR-JFK on DL a few years ago and had a very strange experience. About 2/3rds of the way through the (afternoon) flight, crew shut off the entertainment system. Landed at JFK and taxied to a remote part of the airport, at which point the pilot told us to stay in our seats with our seat belts buckled. 10 minutes passed and the pilot/crew got very curt with people who were taking their seat belts off, let alone the lone guy who stood up. Maybe 10 minutes later, without warning, a bunch of federal agents came onto the plane, went deep into the Y cabin, and brought out two men. They came back twice for two more passengers in different parts of the cabin, which was odd. The pilot then told us that there had been a threat against the aircraft while we were in flight. No idea what that had to do with those four people in question. Then we ended up taxiing to a domestic gate, so we were stuck on the plane for another 20 minutes for a customs setup. By the time we got out to baggage claim, everyone's bags were off of the belt and arranged neatly.