This is clearly a violation of her 4th Amendment rights. In the various court rulings that I have reviewed regarding airport searches, even the judges that supported the searches in airports indicated that you have a choice whether to enter the screening area or not, and it was in the greater good of all the passengers that you get screened prior to boarding. They also indicated that the screening was generally required of everyone and not selective as to put "shame" on any particular passenger being screened. It sounds like all of those tenets of passenger searches were violated here. She should contact the local ACLU and see if they will do anything with it.