Actually the many "players" in the marketplace that you refer to are NOT playing very well.
TSA is the most rigerous tester on earth. If you can make it thru their gauntlet, chances are very good you will find the explosive in the field. If you can't make it thru, you are NOT playing very well.
IMX faced this challenge and failed. Even with DHS/DOD funding. IMSC has succeeded with DMRJ funding.
Now we FOLLOW ON with new products for new protocols with a new knowledge base of what is in the gauntlet. We are in fact, THE Player!