Whoever knowingly and willfully threatens to violate section 112, 1116, or 1201 shall be fined under this title or imprisoned not more than five years, or both, except that imprisonment for a threatened assault shall not exceed three years.

Whoever in connection with any violation of subsection (a) or actual violation of section 112, 1116, or 1201 makes any extortionate demand shall be fined under this title or imprisoned not more than twenty years, or both.

For the purpose of this section “foreign official”, “internationally protected person”, “national of the United States”, and “official guest” shall have the same meanings as those provided in section 1116(a) of this title.

If the victim of an offense under subsection (a) is an internationally protected person outside the United States, the United States may exercise jurisdiction over the offense if (1) the victim is a representative, officer, employee, or agent of the United States, (2) an offender is a national of the United States, or (3) an offender is afterwards found in the United States. As used in this subsection, the United States includes all areas under the jurisdiction of the United States including any of the places within the provisions of sections 5 and 7 of this title and section 46501(2) of title 49.