Does the TSA get employees with secret service type pedigrees, for what they pay? I doubt it, nor does the avg screener get a say in what makes the NOT ALLOWED list. To any TSA members, I wouldn't want your job.
NOT ALLOWED ITEMS are well posted. Here's a wild idea, since it's only been 17 years since 9/11. DON'T BRING NOT ALLOWED ITEMS INTO NOT ALLOWED PLACES. I came up with that one all on my own. At home or about town, do as you will.