[bigmac]

Leaving off the top cryptographers from a list of security researchers seems a bit disingenuous. However, including cryptographers might make Colin's argument trivially obvious, since so many of the top crypographers come from mathematics backgrounds. Therefore, I'll just add Rolf Rolles to your list, and note that he does come from a mathematics background.

[tptacek]

Neither Colin nor Schneier was talking about cryptography. Cryptography and security are not the same thing.

Rolf Rolles is a very smart guy, but he's not a security researcher; he works in content protection and reverse engineering. Having said that: sure. That's one. One. :)