[Smartaleck]

"Consider, we take 2 water bottles, and take a syringe and remove the water. We fill one with Ammonia, and the other with Bleach."

Restricted "hazardous articles" and not allowed. You wouldn't get them on the plane if the screeners do their job.

[peyton randolph]

You wouldn't get them on the plane if the screeners do their job.

I have total confidence that the TSA screeners are (a) competent and (b) not abusing their authority to fondle women and get back at The Man. /sarcasm

[The Chief]

It's not impossible to create a water bottle that looks totally normal, one that liquid can actually be drunk from, but have a hidden second compartment. I saw this done on a news report a couple of years ago.

So I guess the only way to insure airline safety is for everyone to fly naked, but of course true safety can only be assured after a body cavity search...