Originally Posted by
guy999
pretty sure that's so that there aren't people taking pictures of a security checkpoint in order to get around it. Pictures of an airplane would be pretty unlikely to cause that. However I think making that argument to this FA would be unlikely to have worked out well.
I was head down on my phone once between immigration and customs. I was also enrolled in Global Entry. At the time, this was when you got a slip from the kiosk to then give the customs agent. He said "you're a global entry member, do you know that you are not to use your phone until clearing customs?" I apologized and he followed up by saying "that could get you removed from the program and potentially fined. Please don't do it again". I thanked him and went on my way.