; and (ii) in the case of a second or subsequent conviction, fined under this title, imprisoned not more than 5 years, or both. (C) In addition to any other penalties imposed under this paragraph, the Attorney General may, with respect to any person who knowingly violates any provision of section 932— (i) if the person is registered pursuant to section 932(a), after notice and opportunity for a hearing, suspend for not more than 6 months or revoke the registration of that person under section 932(a)