Re:Uhh, that math = HORRIBLE system (Score 1)

Reconsider YOUR math. (It all depends on the sample size they used for the test.)

"Assume say 2,020 people. 20 are terrorists.
The machine will identify .08 * 2000 plus 20*.85 = 177 people called terrorist by the machine Of those only 17 are really terrorists (less than 10%), the rest are innocent. 90% wrong decisions"

Try this:
Assume say 40 people. 20 are terrorists.
The machine will identify .08 * 20 plus 20*.85 = 19 people called terrorist by the machine Of those only 17 are really terrorists (less than 89.5%), the rest are innocent. 11.5% wrong decisions!