So, it appears that the TSA has a choice. Be vigorous in its inspection and be blasted for invasion of privacy, or use less rigorous methods, and face the consequences of missing dangerous materials.
I think you raise the wrong question. I think your question is similar to a CEO saying to Taiichi Ohno:
I care most about quality - providing excellent products to the customer. Either add more inspectors or tell me we have enough inspectors and tell me who we need to replace. The answer Taiichi Ohno would give is to change the way we work to be better, not just add more resources to try and cope with a bad system. More of my thoughts on the topic the TSA doesn't give a hoot about security.
There is another choice - find effective methods to improve quality (better security), reduce waste ($ spent by TSA, people wasting time in line...), respect people. There are many bad things about the current situation at airports they include:
- poor security measures (not well designed to reduce risks), and
- far too intrusive
Both should be fixed. As well as reducing waste. And the way to do so is to change the system - not either add to or take away from what is done now.
The front line TSA people are in a horrible situation. This is the classic situation where Dr. Deming would empathize with the employees and blast the senior leadership who have failed their customers and their employees.
Related: Bikinis For Liberty - Freedom Increasingly at Risk - Exposing Bad Behavior