Since this was the subject of an BI investigation in 2002(?), I would assume that the dad would know what Nick told the FBI . . .
Still --- wouldn't you --- if you were Michael --- now become more suspicious of the terrorist connection, and maybe question a little more what type of contact they really might have had? If it were me, I'd be wanting a thorough investigation --- I wouldn't pass it off as mere coincidence, and I'd want to know if somehow a terrorist group had befriended and was using my kid.