https://www.techdirt.com/articles/20200215/18024743924/gao-says-tsa-has-no-idea-if-screeners-are-up-to-date-their-training.shtml

Here comes more evidence explaining why the TSA sucks at prevention and blows at cures. Presented to voters as a proactive defense against sophisticated terrorism threats, the TSA has become an agency that belatedly reacts to each observed threats -- threats normally defused by passengers who don't work for the government and haven't received extensive training on anti-terrorism protocols.

Passengers can't screen other passengers, but they've proven pretty adept at defusing airborne threats. The TSA has the power to do both, but usually does neither, spending its time dumping breast milk into trash cans, fondling toddlers and people with rare diseases, and proudly displaying every inert grenade it seizes as evidence of its travel safety prowess.