Vetted technology things like the Explosives Trace Detector that has to have a swab of the bag Wholesale Football Jerseys, Cheap Jerseys Supply From China and hand, Or the now retired gear, Or the minivan sized X ray units, called CTX 5500, That tourists sometimes put their bags through before they are checked is put on a list so that, When existing machinery is going replaced every ten years or so, TSA at individual airports can pick the right technology to replace it based on factors like performance and cost.

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