Whoever knowingly sells, purchases, uses for profit, or transports for sale or profit, the human remains of a Native American without the right of possession to those remains as provided in the Native American Graves Protection and Repatriation Act shall be fined in accordance with this title, or imprisoned not more than 1 year and 1 day, or both, and in the case of a second or subsequent violation, be fined in accordance with this title, or imprisoned not more than 10 years, or both.