The other reason why the liquid ban is such a joke is that the liquids sold past security aren't screened, either. The driver of the truck bringing them in has to have a SIDA badge and SIDA parking permit (and requisite background check, which IMHO proves little about security risk) and the truck may get a perfunctory inspection by an airport police officer at the entry gate, but the drinks aren't "screened" per se.

Allowing passengers to bring their own liquids through security is safer...at least they're x-rayed!