"Dogs tend to be the cheapest, fastest and most reliable explosive detection capacity that we have in this country, " Townsend said.
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.
They also work to mitigate the results of an explosion, and develop simulants to aid in the production of materials that can be used for effective training of explosive detection teams.
The American Civil Liberties Union has "always supported explosive detection as a good form of security that doesn't really invade privacy, " said Jay Stanley, an attorney and privacy expert with the organization.
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.
At airports throughout the United States, we have deployed additional airport law enforcement officials, behavior-detection officers, air marshals, and explosive-detection canine teams, among other security measures, both seen and unseen.
He told CNN that there needed to be greater investment in random searches by agents with explosive trace detection equipment and greater deployment of CCTV cameras, saying the extra investment needed in mass transit security amounted to a fraction of the economic cost of a successful attack.
It may not have detected it as an explosive, but it certainly would've raised some flags that would have required further detection and a review either by an officer or further scanning.
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