TSA

“ While over U.S. airspace, flight crew may not make any announcement to passengers concerning flight path or position over cities or landmarks.
5. Passengers may not have any blankets, pillows, or personal belongings on the lap beginning 1 hour prior to arrival at destination. ”

“ All aircraft operator personnel implementing this SD must be briefed by the aircraft operator on its content and the restrictions governing dissemination. No other dissemination may be made without prior approval of the Assistant Secretary for the Transportation Security Administration. ”