I agree that all things should be considered in screening, the part about Grandma (or any other group) is wrong.

If you give any group a lower level of scrutiny that's exactly the group the terrorists will go after for recruits. When I go to the airport the only person I know for sure isn't a murdering terrorist is me all, other should strip searched.

The Israelis have it down to a science, they focus on psychological screening, of course our airline industry is about 10 times the size of theirs so to create a program that size would be a real job.