Why are these the only two options?
And do you believe such invasive procedures are keeping planes from being blown up in mid-air? If so, whatever kept them from being blown up in mid-air before these techniques were employed? And what keeps it from happening today in countries which have a far larger terrorist threat, who do not employ these techniques?
Embarrassing for some, a violation of civil rights for all.
Read what I have written. I have clearly explained why they do not use them.