"TSA employees have many layers of security throughout airports. Passengers may be randomly selected for additional screening measures at the checkpoint or in the gate at any time."
Go steal that $5.00 bottle of water from that HAWT! blonde over there, Charlie
I dont know what to say.
Passengers could be asked to give drink samples to TSA
http://www.kjct8.com/news/Passenger-could-be-asked-to-give-drink-samples-to-TSA/-/163152/15394098/-/2eprat/-/index.html
Go steal that $5.00 bottle of water from that HAWT! blonde over there, Charlie