Never say never. There would always be doubt, and some kind of parallel construction would surely be used to protect the secret technique. I could see it bein

Never say never. There would always be doubt, and some kind of parallel construction would surely be used to protect the secret technique. I could see it being used in hundreds of cases per year for a decade before anyone could prove anything. Just like ubiquitous internet surveillance. And even when irrefutable proof surfaces, the very same people who staunchly said "that could never happen" will say "of course, how could you even be surprised?"