The TSA misses 60-95% of guns in security tests. That's approximately $10-$11 per flight that you pay for at most a 40% reduction in guns on the plane (assuming

The TSA misses 60-95% of guns in security tests. That's approximately $10-$11 per flight that you pay for at most a 40% reduction in guns on the plane (assuming they're even able to find intentionally concealed firearms at the same rate as the base chance). Most guns that make it through are never used or intended to be used for violence on the plane, totalling to well over (unclear if it's closer to 1x or 100x too small) $250m for every gun which was caught which might have on average prevented 1 gun-related crime in the air. Their other stats aren't much better. For the equivalent of $250m worth of effort, there are thousands of better uses of your time and money. And today, right this second, you can bring high-powered un-extinguishable bombs onto a plane [0]. That comic is written in jest, but it really is trivial to kill a lot of people with common household devices and chemicals, including those allowed on planes. The world carrys on because most people are at least halfway decent, not because the TSA saves us. [0] https://xkcd.com/651/ https://xkcd.com/651/