Aviation Security: FAA's Deployments of Equipment to Detect Traces of Explosives

Pursuant to a congressional request, GAO provided information on the status of the Federal Aviation Administration's (FAA) deployments of explosives trace detection equipment at the nation's busiest airports, focusing on: (1) the status of FAA's deployments of the trace detection equipment, including whether all of the 19 category X or 60 category 1 airports, the largest and busiest airports, are supplied with this equipment and, if not, why; (2) FAA's plans for deploying any remaining trace equipment; and (3) any problems that could affect the future deployments or operation of this equipment.