Recently, at Tulsa, I opted out of the WBI. I was forced to remove, wallet, cash, boarding pass, etc, from pockets while they did the full pat down. Not pleasant, but suppose that's what they ultimately want to do - make it so unpleasant that you're more willing to do the WBI instead. They went through my wallet and the way things were set up I had part of my belongings to the right of me and the other part to the left, making it difficult to keep an eye on everything at once. Not a good situation.