I was once forced to share an office with someone who had Aspergers (diagnosed, official) and even though he and I had nothing to do with each from a working perspective, it was a difficult and conflictive situation and I can only imagine that in the cockpit this would be highly dangerous.
Friends of mine have a son with Aspergers, so it is something I know a little about. 'Sufferers' for want of a better word, are generally highly intelligent and diligent, but have no people skills whatsoever and often have a very blinkered approach to things and a refusal to see another point of view. Very dangerous.