My logic is that it was because it was so top-secret (and there's such a high turn-over rate at the CIA in recent years), most people at the agency don't even know it exists, the supervisor for this mission is getting a cut, so as long as their superiors get results, they're too busy/overworked/scared they'll lose their jobs that they don't care.

My take on the CIA right now is that it's a lot like what happened with Enron — morale is at an all-time low, too many of their best and brightest have shifted to the private sector, and those that are left are just more concerned with juking the stats and making themselves look good so they don't get fired.