The major points - at the end (though reading the body of the summary helps to understand the finish) - are:

So if it doesn’t significantly expand the government’s detention authority, doesn’t authorize detention of citizens, doesn’t really mandate the military detention of other terrorist suspects, and doesn’t do more to prevent the closure of Gitmo than does current law, what’s all the fuss about? Is it even important?

The final bill is, indeed, far less consequential than earlier versions would have been. Much of the fuss is overblown. That said, the bill has several important elements:

- The codification of detention authority in statute is a significant development, not because it enables anything that Congress had previously forbidden but because it puts the legislature squarely behind a set of policies on which it had always retained a kind of strategic ambiguity–a tolerance for detention without a clear endorsement of it of the sort that would make members accountable. Congress has now given that endorsement, and that is no small thing.

- The transfer restrictions will continue to have negative effects on administration management of detainee affairs, reducing flexibility and agility and compelling the continued detention of people the administration does not want to detain, in a status the administration does not wish to use, and at a facility it would prefer to vacate. That this is no change from current law–indeed, that the NDAA offers slightly more flexibility than does current law–does not make these restrictions any less troublesome.

- The rump mandatory detention provision remains a bit of a wild card that could have mischievous effects in practice. Though it ends up requiring very little, it does impose–as we have described–a default option of military detention for certain categories of cases. And this option might prove politically difficult to jettison.
Is there anything in the NDAA about which human rights groups and civil libertarians ought to be pleased?

Yes, actually, there is. Section 1024 of the bill, as we’ve noted, requires that people subject to long-term military detention in circumstances not already subject to habeas corpus review–think the Detention Facility in Parwan, Afghanistan–henceforth shall have the right to a military lawyer and a proceeding before a military judge in order to contest the government’s factual basis for believing them to be subject to detention. This is an extraordinary and novel development. Detainees in Afghanistan currently have access to the Detainee Review Board process, which as described in this article already provide a relatively robust screening mechanism, particularly compared to years past. The DRB process does not include lawyers and judges, however, and human rights advocacy groups have criticized them on this ground. Requiring lawyers and judges to staff out the screening process is a pretty remarkable shift in the direction of accomodating those concerns.
Semantics can be important. Thus, one should reflect on the statute's use of the term "law of war" (used 11 times in the summary; as opposed to using the "Law of Armed Conflict" or "International Humanitarian Law"). To me, that usage (now primarily a USAianism) reflects an intent that decision-makers need to look not at LOAC-IHL as viewed internationally, but as to how LOAC-IHL is viewed parochially by the US Constitutional Branches as the "law of war".

At the same time, the statute extends the substance of the habeas process via a military judge wherever in the World detainees are held by the US. That is something I've suggested as an alternative to the more costly and toothless habeas process centered on Washington DC.

Regards

Mike