Let's get it over with. NO carry on items whatsoever except pills, ID and boarding pass. NO wallets. Minimal clothing, check the coats. You can get rid of those baggage scanners. Get the best metal detetors (and I'm assuming they'd catch any surgically installed metal). The airlines would have to supply on demand, for free, all basic comfort items (like shaving, brushing, ... blankets). A $1000.00 ATM card immediately to anyone who loses his one checked bag and is stranded without clothes and toiletries.
I'd feel safer and would be comforted that it applies to everyone (even the flight crew). There would be no industry rivalries (all electronic devices banned).
The airline industry could ease their profit woes with more income from phones, and perhaps they could drop worries and provide nominal fee internet. But they'd have to stop charging for drinks.
Sure, 20 persons could still smuggle enough liqi-gel "inside" but they wouldn't have batteries or wires! Maybe we'd have to submit to "random probing"? Would taht be too much?
I think it's time. Do you?