Almost no chance at all. Keep in mind, the most important thing, when it comes to dealing with this, this... insidious threat, is to be intensely careful in avoiding any false negatives. There must be none what so ever. And besides, who cares, really — about a few — or a few million false positives. Oh, and this condition, it's really quite heritable, and, as head of the program, you would need to... well, deal with the children, in a like manner as that of the parents. Not that this would be a problem, of course.

Joe Stalin, the NKVD, the Moscow Trials, and the Great Purge sort of came to mind.