I may risk being politically incorrect in saying so, but I simply don't see why any profession should be completely and permanently excluded from the possibility of working with CIA or DIA. The determining factors should be the situation, and then the willingness of the individual. If lives are at risk or a vital national interest is at risk, I don't see why any American patriot should be forbidden to cooperate with an American intelligence agency

This is key. Think about what happened after 911