From the New York Times – To prevent attacks like the Lockerbie bombing, caused by a suitcase containing a bomb loaded onto a plane without the passenger who checked it also on being on board, airlines are supposed to remove the bags of any passengers who check luggage onto flights they do not board.In an era of suicide attacks, that precaution no longer seems as reassuring as it once did, but it is still observed carefully enough to trigger alarms like the one on Monday.
