Kris music at Guantanamo?

Here's a strange one: The New York Times reports today that a selection of Kris' greatest hits was among the music played for detainees at Guantánamo.
The story is actually sourcing a 2006 book by Jon Ronson called "The Men Who Stare at Goats."
Former detainee Jamal al-Harith tells Ronson he was subject to recordings of "loud screeches and bags, 'jumbled noises,'" and, at least once, Kris music.
"According to Mr. Harith, an interrogator baffled him by playing CDs including one by a Fleetwood Mac cover band, another with a selection of Kris Kristofferson’s greatest hits, and an album by Matchbox Twenty," Robert Mackey writes for the Times.
Here's the relevant excerpt from the book, which is apparently slated to be a feature film late this year:

"When the CD was finished, (the interrogator) came back into the room and said, 'You might like this.' And he put on Kris Kristofferson's greatest hits. Normal volume. And he left the room again. And then, when that was finished, he came back and said, 'Here's a Matchbox 20 CD.'"
"Was he doing it for entertainment purposes?" I asked.
"It's interrogation," said Jamal. "I don't think they were trying to entertain me."