Having now read through most of the majority opinion, I tend to agree with some of wash's thoughts (but not all)
This is not a 14th amendment opinion -- it is an opinion based primarily on the Suspension clause of the Constitution (Article 1, section 9, clause 2).
While the length of detention was not a factor in whether the law applied, it was a factor in the Court's decision to take on the issue.
It may be "territorial" for the Court to assert the power of the Judiciary over this, but this is the same fight since Marbury v. Madison. And it is over habeus corpus, the Great Writ, one of the cornerstones of English common law as it has come into our country.
They do get into procedural due process, but the opinion makes for interesting reading on why they think this is different from some of the WWII cases. They do look at what the CSRT process involves, and it is not the same as what most of you would imagine a trial is.
wash, you are being entirely too dismissive of this case. It is not as broad a bogeyman as other posters make it out to be, but it is significant. I would differ that it is proof of a "living" doctrine of the Constitution. Habeus corpus is a very, very old longstanding feature in English common law. It just doesn't come up in this context except for the unique circumstances of Gitmo.