You might start with people over 55. There has NEVER been an attack anywhere in the world by elderly people. The supposition that terrorists could recruit elderly people is just STUPID!

And Kids. Although you may have been thoroughly brainwashed about imaginary threats, there has NEVER been an attack on Aviation worldwide by kids.
Nor have there ever been an attack on any target in the USA by kids.
The supposition that terrorists could recruit kids (in the USA) is also STUPID!

Its crazy to treat ALL travelers as potential terrorists. You completely lose sight of the objective!