Makes sense, though. The people who are the best at math are going to be the people who are the best at grokking and expanding upon the existing understanding of the math involved in cryptography.
But for contractor, there are job boards for people with clearances.[2] Although you get a pay boost of at least 10-15k, I'm sure the bureaucracy is awful.
I also wouldn't assume that all the top people go to biz. Some very talented people work in gov and academia. Not everyone is guided primarily by money & scores.
[1] http://www.math.uh.edu/~tomforde/Web/Jobs.html [2] http://www.clearedconnections.com/
I would already know exactly which employee to target based on your dubious interests gleaned from your internet searches.
You'd have to have pretty big balls to fuck with a three letter agency like that.
Also you have to be an American citizen with parents who live in America. At least I know this is the case for civilians who want high security clearances.