As good as the Monterey language school is deemed to be, most Americans are lousy linguists.
Plus, it is not likely that a North Korean agent would slide up to a caucasian who smells like dial and hamburgers just to start a conversation over nuclear missile dispositions.
(Well, maybe to cage a couple of Salems from him.)
On the other hand, there is no way that I'd trust any American born "student of Islam/believer in the Koran/PHD candidate in muslim history" etc. to be anything other than a brainwashed fellow traveler.
Education in another belief system or culture is faulty and usually roomantic unless it's been achieved largely on-site; knowledge at long range is a non-sequiter.
Besides, the level of reasoning displayed by students in US schools tells me that they are overwhelmingly prone to faling in love with their subject matter.