My mother was SSSSSSSed every time she came and every time she left here (home YVR, SFO to visit). Finally it wore her out and she refuses to fly anymore.
I used to see the same @#$%& screener make her stand with her arms up for way too long. Many older people have shoulder problems. The same idiot would wand, and wand and wand and wand the artificial hip joint. Then wand it some more.
She was in her late 70's when she finally threw in the towel on flying ... specifically because of the screening process.