While other bands are currently in the news opposing Gitmo, remember that Metallica's lead vocalist had a different take on the meaning of the use of their music at Gitmo. From Revolver Magazine:
Metallica frontman James Hetfield recently told German-language TV network 3sat that part of him was proud the U.S. military chose the band’s music to torture prisoners at U.S. detention centers in Cuba’s Guantanamo Bay. “It’s strong; it’s music that’s powerful,” Hetfield says. “It represents something that they don’t like—maybe freedom, aggression… I don’t know… Freedom of speech."It seems that the White House will have to expand its enemies list.