Model for Guantanamo detainees?

An article in the Outlook section of the Wash Post presents Obama with an interesting option in dealing with Guantanamo detainees: The Religious Rehabilitation Group. Apparently it has been effective; 40 former terrorists, most members of Jemaah Islamiyah, have been released and haven't, as of yet, returned to extremism. Similar programs in Saudi and Yemen have not met similar success; this is not a fool proof method. But maybe done the right way, a la Singapore(?), it could be:

"Singaporean officials said they decided to use Islamic clerics because they were convinced that only religious leaders could "de-program" the detainees. "Once you have taken an oath of God, it will take another man of God to undo it," a senior security official told me."