Re: @moiety
"... but I'm pretty sure that the technology is still being developed ..." -- moeity
Trouble is ... the maths is already developed, so it really doesn't matter what you do with the technology. There are too many people and too few terrorists, so if your false positive rate is anywhere near the realm of the possible you will have far too many leads to follow (a "99.99% accurate" test would give you 3,000 leads in the UK alone - it would take something like 30,000 field operatives --- and probably another 10,000 support staff --- to keep an eye on them 24x7).
See base rate fallacy and/or paradox of the false positive
Biting the hand that feeds IT
