In what way are they keeping us safe? Look at the data. They are not keeping us safe. Its a scam and a sham and a payola scheme.
http://fortune.com/2015/06/02/the-tea-airport-security-problems/
According to the report, during 2015: TSA screened more than 708 million passengers, a 6.1 percent increase from 2014. ... Of the 70 tests, TSA Transportation Security Officers (TSOs) failed to detect the weapons and explosives 67 times, a 95.7 percent failure rate. That’s certainly an impressive failure on TSA’s part.Mar 14, 2016
Do TSA’s impressive 2015 statistics indicate success or failure ...
https://travelersunited.org/.../do-tsas-impressive-2015-statistics-indicate-success-or-failur...
I know they fail tests. However, they are really functioning as a deterrent to terrorists. Terrorists shift to non guarded targets like schools, gay nightclubs, shopping markets etc.
I dont like airport security any more than the next person but I prefer the deterrent to the other option