Absolute power corrupts absolutely. Oh so many other expressions pass through my mind about why people become police or like to flaunt their authority over others.

A very entertaining video series on YouTube is from Australia TV where people try to skirt regulations on food imports, etc.

A random episode is: Border Security Austrailia.s07e05
by rameshpratap20. I know Australia is spelled wrong, but there is no advertising front end by that uploader. Videos by others exist (same tv series) but your search will reveal them.

https://www.youtube.com/watch?v=V6hM9jyNPYg

Another series called Airport 24/7: Miami | Season 1 | Episode 1 | The Passenger

https://www.youtube.com/watch?v=SdcFzl7Mt_4

covers many aspects and slips in a few facts such as TSA finding 1300 guns per year and Miami keeping $7 million taken from passengers.

Yet the power play by TSA, in the interests of security, is shown by the example of the worlds largest plane (500+) having 2:20 hours to turn around before the airline would have to pay more, and passengers delayed.

At 11 minutes into the video comes the agents who decide to inspect the aircraft totally and leaves only 50 minutes to clean and load the passengers.

This link (same video) will jump directly there: https://www.youtube.com/watch?v=SdcFzl7Mt_4#t=662

Note that the TSA agent doesn't trust the cleaning crew, and shows no concern about delaying the aircraft, which reminds me of events of TSA failures which close terminals and other examples.

BTW: the 3 ounce limit being upped to 3.4 ounces was because of me. (They made the rule but no one read the actual label on a toothpaste tube so I emailed them. At least that's my story and I'm sticking to it.)