This is a violation of the 4th Amendment, IMHO.
I always carry a copy of the Constitution, the Declaration of Independence, my DL and CCW, and the Bible, just in case.
It’s all about conditioning, no other reasons. TSA at bus stops and train stations. Border patrol with checkpoints 100 miles inland from the border. Warrantless searches following the Boston bombing and barely a peep from the people affected. They have a plan, and it is working.