I remember often standing in line at Dulles. Backed up to the escalators, you look down and see the security line completely folded on itself(like the game snake), people filling the entire space logjammed by security. There were easily more people there than on any flight I took out of Dulles.
Especially with how common we've seen violent outbursts on airplanes since post-pandemic flights have resumed. It's almost a daily occurrence. If those individuals had weapons during flight, the outcomes would be very different.
Leave the detection and prevention of sophisticated threats to agencies better equipped.
Alternative take: the people throwing tantrums have reached their breaking point from the stress of being in a totalitarian environment [0]. And all the security theater of airports is a major and needless contributor to that stress.
[0] Just to be clear here, I think masks are highly necessary and if I had to fly somewhere I would be wearing a full face P100. But the act of forcing people to wear them is still totalitarian, regardless of how justified it is.
Wearing something over your face is annoying. Loops around your ears are irritating. Confronting someone that they need to put something on their face creates an adversarial situation. These are facts that the (otherwise sensible) pro-mask political dogma has rallied around rejecting, rather than focusing on the more enlightened viewpoint that wearing a mask is indeed a burden but we all have the responsibility to do it.
https://news.yahoo.com/american-airlines-flight-diverted-pas...
Even the deadly hijackings it was formed to prevent wouldn't ever happen again, since the passengers would fight back now
https://www.datagraver.com/thumbs/1300x1300r/2016-03/hijacki...
https://www.usatoday.com/story/news/2016/03/29/hijackings-ra...