Whoever knowingly operates, or attempts or conspires to operate, by any means, or embarks in any submersible vessel or semi-submersible vessel that is without nationality and that is navigating or has navigated into, through, or from waters beyond the outer limit of the territorial sea of a single country or a lateral limit of that country’s territorial sea with an adjacent country, with the intent to evade detection, shall be fined under this title, imprisoned not more than 15 years, or both.