Tazi, additional random screening takes place at the gate. Continuous screening is done at the checkpoint. That only entails wanding. Carry-on bags are checked at the gate as well as wanding. Something that is not always done at the checkpoint. Thats how that "gentlemans" knives were found. Just by chance at a random screening at the gate. Maybe our TSA friends can elaborate further.

Edited for content to clarify random/continuous definition.

[This message has been edited by ACES II (edited 02-26-2003).]