Could it be that the popular opposition to the War on Terror and Guantanamo disappeared after the 2008 election–where the current President’s policies are not much different than the previous President’s.
As Gerard Magliocca noted:
The President, by the way, also doesn’t talk about closing Gitmo anymore. That was so 2008.
Not even a single dissent from the liberal justices? A 9-0 rebuke of the entire series of detainee cases? Maybe the lack of any meaningful movement has sapped the Court’s willingness to defy the other branches. Cf. Health care.