RECORD EVERYTHING !
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Problem is, they take your camera and cellphone from you
Yeah, well. You CAN’T take your camera and use it when it counts. They have confiscated them in the tubs going through the x-ray machines!
Some airports will arrest you for recording.
Just as a heads up.
Also, standard procedure for some secured areas is to involve federal officials as well, to detain, document the “incident” and question. Most will not charge you but they will run background checks before releasing you. You may be added to a “list” after such a detention.