This report assesses the operational performance of explosives-detection equipment and hardened unit-loading devices (HULDs) in airports and compares their operational performance to their laboratory performance, with a focus on improving aviation security.

The official, highly controversial, highly critical, much publicized audit of the Federal Aviation Admin. (FAA) to evaluate the effectiveness of the FAA security program in monitoring of aircraft, passengers, and property in airport operating areas and terminals. Originally issued as a classified document, this is the edited copy released under a FOIA request.