Well Pat, your post is based on competitive price bidding. ( we need two sources) What would you do, being the decision maker at tsa, and you ask for quotes, you receive one for the latest etd to gain qpl status, it clearly is at a lower price per unit than the French company and the English company, it works faster, costs less to operate and it finds the dangerous material to a higher degree of resolution than any competitor has AND you have a growing threat in passenger checkpoint and cargo.
Further to your point, you assume, incorrectly, that tsa knows the new Smiths unit will work as well, be as competitively priced AND pass certification, within 1 to 2 years...plus add in a few phone calls from various congressmen about the growing threat from ISIS...all the while you (tsa) are sitting on millions and millions of dollars already allocated for new and improved etd units...
Happy to say, your thesis does not have a chance in hell of being true or coming to pass. If you model tsa's decisions, back in 07-09ish, they removed all the old Smith's and Morpho machines and replaced them with, at that time, higher resolution models from Smith's and Morpho. Tsa does not dither when it is fully funded. To do so would be dangerous and in my opinion, highly irresponsible in the face of a growing threat.
One last point; tsa could have purchased etd units any time they wanted in 2014. But they have waited for the b-220 to gain qpl listing. Hint. HINT! HINTTTT!
Best of Luck to All IMSC LONGS!