I’m not sure why you’re being downvoted. You’re right, he won’t be put in the general population. Even if we don’t care about actually protecting him, we, as a country, do have an interest in protecting the secrets that he knows. Even if he rarely read and barely listened, he still managed to pick up some of our most sensitive secrets and we don’t want those getting out.

If he’s convicted, he’s going to be on some form of house arrest, not to protect him but to protect everyone else.