Joe-- TSA has actually illustrated an inline ETD unit behind the AIT. They want it for passenger baggage-carryons(?) and certainly cargo.
And this is the long shot- they will eventually screen 100% of airport workers and all of their "bring to work" things.
The ETD-EDS integration is the grand daddy of the TOT which TSA has pointed to as 5 years out. The TOT is the be all / end all of screening modalities that do it all with a zero human error rate. ( operator error is human error).
Put it this way, if you are an EDS maker, what do you have that makes you different than your AIT competitors? If you say NOTHING or "our algorithm", you can leap into the tar pit of Dead companies.
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