Anthony Kennedy

“ In other words, it seems to me that the basic teaching of Ross and the Insular Cases is that there is no rigid and abstract rule that Congress, as a condition precedent to exercising power over Americans overseas, must exercise it subject to all the guarantees of the Constitution, no matter what the conditions and considerations are that would make adherence to a specific guarantee altogether impracticable and anomalous. ”

“ The distinction between citizens and aliens follows from the undoubted proposition that the Constitution does not create, nor do general principles of law create, any juridical relation between our country and some undefined, limitless class of noncitizens who are beyond our territory. ”

“ The rights of a citizen, as to whom the United States has continuing obligations, are not presented by this case.
I do not mean to imply, and the Court has not decided, that persons in the position of the respondent have no constitutional protection. The United States is prosecuting a foreign national in a court established under Article III, and all of the trial proceedings are governed by the Constitution. ”

“ The absence of local judges or magistrates available to issue warrants, the differing and perhaps unascertainable conceptions of reasonableness and privacy that prevail abroad, and the need to cooperate with foreign officials all indicate that the Fourth Amendment's warrant requirement should not apply in Mexico as it does in this country. ”