Wow, that's shocking. I flew on a trip with some work guys to do some ABDR, (Aircraft Battle Damage Repair), and one of them accidentally left some 30.06 ammo in his carry-on bag from a hunting trip. He got taken in for questioning, and we almost missed our flight. Security had a hard time believing that it was an accident.I made a round trip from Detroit to Hawaii via Phoenix in January. 5 security checks (Detroit, Phoenix terminal change, Hawaii, Hawaii secondary screening, Phoenix terminal change). I was waiting for my bags in Detroit, put my coat back on, which I had hand carried through all of the airports, and found a handful of live rounds in the pocket. A 9mm, and a couple 5.56 leftover from a range trip or whatever.
Made it onto every plane without issue with the coat going through X-ray.