I wonder if the TSA would extend the same courtesy to a visitor to the USA from some foreign place like Paris or London.
http://www.tpnn.com/2014/07/05/video-ms-13-gang-members-allowed-into-u-s-but-wife-of-marine-veteran-thrown-in-prison/
http://www.youtube.com/watch?v=AA0ItW0CvrE