(a) Whoever, either--
(1) in the special maritime and territorial jurisdiction of the United States, or on any land or building owned by, leased to, or otherwise used by or under the control of the Government of the United States; or knowingly sells or possesses with intent to sell an obscene visual depiction shall be punished by a fine in accordance with the provisions of this title or imprisoned for not more than 2 years, or both.
(b) For the purposes of this section, the term "visual depiction" includes undeveloped film and videotape but does not include mere words.§ 1461. Mailing Obscene or Crime-Inciting Matter
Whoever knowingly uses the mails for the mailing, carriage in the mails, or delivery of anything declared by this section or section 3001(e) of title 39 to be nonmailable, or knowingly causes to be delivered by mail according to the direction thereon, or at the place at which it is directed to be delivered by the person to whom it is addressed, or knowingly takes any such thing from the mails for the purpose of circulating or disposing thereof, or of aiding in the circulation or disposition thereof, shall be fined under this title or imprisoned not more than five years, or both, for the first such offense, and shall be fined under this title or imprisoned not more than ten years, or both, for each such offense thereafter.