Besides the diversity thing, it's the Arabic-speaking thing. As long as you do not actually shoot or blow up the interviewer, you're in. The FBI, while man for man is nowhere remotely near as dumb as BATF people, it still isn't as collectively smart as the CIA, or the NSA, or ONI, or USAI.
Whenever you get all dewy-eyed about the FBI in Peace and War, just remember the Walker Spy Case. It took Walker's wife 5 years and about 20 tries to turn him and the rest of her family in. And it wasn't as if she didn't actually go in their offices and tell FBI Agents, "My husband is a Soviet Agent."
She reported to the Boston and Hyannis offices, where we now know the agents were just too busy helping Whitey Bulger's Irish Mob bump off the Italian Mob, so Whitey could take over.
Walker passed ALL of our communications codes from the Navy (which handled all commo in and out of VN) to the Soviets, who immediately passed them to the North VietNamese (in case you were wondering how the NVA always seemed to know where we were going next and what we were going to do ... usually before we did).
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