Judicial power may extend to cases involving "admiralty and maritime", between a state(or citizen) and foreign states(and citizens). The courts do have jurisdiction with countries we have treadies with.
Then what does Congress power to define and punish offenses against the law of nations entail? How can Congress make a law that does not fall within the jurisdiction of the U.S. judicial power? You are advocating a policy that was the cornerstone of Nazi Germany: The SS and Gestapo were exempt from the jurisdiction of German courts. Whenever a German court acquitted someone the Nazis wanted locked up the SS/Gestapo simply put the person in protective custody and the court had no further say in the matter.
But the court's jurisdiction into such cases does not mean that U.S. consitutional rights must be extended to the criminal.
Wby? Tell me exactly what the Constitution says on this matter. Tell me where the Constitution says someone accused of violating U.S. law does not have U.S constitutional due process rights.
I don't see how you can argue that Amendment VI could possibly apply to foreign terrorists commiting crimes on foreign lands.
When did I say this? If the crimes are committed in foreign lands, what right does the U.S. have to get involved (if not due to Congress power to define and punish offenses against the law of nations)?
A right to a speedy and public trial "by an impartial jury of the state and district wherein the crime shall have been committed" is impossible if the crime is commited outside of the U.S. What are we supposed to do? Set up a court case with a jury full of Islamic fundementalists as the jurors?
Congress has the power to create courts in addition to the U.S. Supreme Court and we have before helped create tribunals to try non-U.S. citizens in an international setting and such tribunals did not operate with juries (Nuremberg). However, at no time did we torture the defendants who we compelled to face this tribunal or deny them legal representation as GWB has done with suspected terrorists.
The fact is that terrorists are no different than POWs of any other war, other than the fact that they aren't protected by the Geneva Conventions.
Congress has not declared war on anybody, so how can we legally be at war? And if we are legally at war, then we must obey the Geneva Convention, which we ratified.