Please provide me with a list of the cryptographers
brilliant! sadly... it's a politician's way "f... you sir!", and the recipient knows it, so it will come to nothing :/
and even if the answer is provided, it will be in line with "in the line of national security", and the matter is not important enough to grill through the (probable) truth that the cryptographers providing advice to FBI (if any ;) are their own...
Biting the hand that feeds IT
