In this household, we have to fly frequently. I don't really like it, but, I would much rather be inconvenienced and subjected to scrutiny than to have myself or a member of my family turned to ash because some nut case decides to take over the plane and fly it into a building. And I would much rather that search was conducted by law enforcement or the military than some goof trying to pretend they have some sort of authority and expertise.
Because this country is free (and its borders are much more free and open than they should be), we have no choice than to make concessions to keep these kooks from killing thousands of people with such ease. If that steps on your toes, I guess there's Greyhound.