Why is it that going through security at Heathrow, you are allowed to keep your shoes & belt on, & your wallet in your pocket, yet doing the same at JFK in NY, you have to remove them?.
Surely the security at all national airports is the same, especially so in all USA airports?.
It's theatre and is more about selling you stuff than security. They're happy enough to confiscate a bottle of water/shaving cream/sun tan lotion etc so you can then go round the corner and buy a replacement at twice the price and the unpredictable queues force people to get there early so they have to purchase overpriced food or browse duty free.