The man's a naturalized citizen who was arrested on American soil. Glenn Beck is completely correct: we have to Mirandize suspected traitors.
Use of term deliberate, by the way: Glenn Beck didn't use it in that clip, but I doubt that he'd disagree with my use of it. Anyway, this isn't a case of a non-citizen captured overseas as an illegal combatant, or even one of a non-citizen captured here: there are existing Constitutional mechanisms in place. Including this one:
Treason against the United States, shall consist only in levying war against them, or in adhering to their enemies, giving them aid and comfort. No person shall be convicted of treason unless on the testimony of two witnesses to the same overt act, or on confession in open court.
Of course, that assumes that this administration will seek to have this man charged and tried with what is unambiguously a capital crime. I leave it to the reader to contemplate the implications of a refusal to do so.
Crossposted to Moe Lane.