"What is the probability that the FBI, say, have already tested the current offerings?"

I would turn this around and look at it a little differently..what are the chances that they did not perform their own testing..little or none IMO..they had some form of involvement other than the mere exchange of information test IMO. At the least, our product is on their radar presently just via the data share testing alone.

They get a black eye all the time for information flubs..make no mistake, they want this problem solved..it is just as question as to what does the trick and who perfoms the trick..based on the information in this study..I am starting to like our magic so to speak..

At the end of the day, it may be multiple solutions that involves many different parties. Is the pie big enough to share?..I hope so..