I think it's more complicated than that, with the constitutional protections from US government action being narrower outside the US border depending on the leg

I think it's more complicated than that, with the constitutional protections from US government action being narrower outside the US border depending on the legal status of the person(s) in question and the context of the imposition on their rights. So-called unlawful enemy combatants have limited rights and the Supreme Court has upheld all sorts of limitations on the rights of US citizens apprehended in a theater of war, but even foreign citizens have a constitutional right to habeas corpus when apprehended by the government on foreign soil (Boumediene v. Bush).