I don't think the procedures are invasive at all.
In fact, I feel more at ease knowing the TSA is taking these threats seriously and reducing the chances that the plane I or my loved ones are flying in.
God Bless the TSA
Well, maybe we can thank the TSA for keeping threat manageable?
If they can't get guns or knives on board, then they can't control plane load of people determined to stomp 'em into goo.
And if they have to mix their own explosives, maybe one of their neighbors will object?