you don't deal with false positives by doing the exact same test multiple times. that's insane.

given the fact that he did not have any explosives or was planning anything nefarious, this whole story shouldn't have happened (in any free and/or sane country) because other tests and checks should have quickly revealed his innocence.

and from what I get, they did so, but chose to detain and harass him, and break into his house (ffs!) regardless, possibly because religion/race/background/non-WASP-ness