On the issue of curbside check-in, Mineta said it will be allowed on a selective basis, based on available equipment and explosive detection systems at individual airports.

CNN: Mineta: System 'safe' and 'secure'

These funds will be used to sustain the current cap level of 46, 000 full time screening personnel, and for explosive detection systems, security enforcement, cargo inspections, Federal Air Marshals, and other TSA activities.

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It is also important to make sure that operators of Explosive Detection Systems (EDS) and Trace Detection Systems (TDS) learn to identify specific X-ray transmission properties of the materials they are called upon to identify.

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