"Hobby Lobby makes clear that all persons — human and corporate, citizen and foreigner, resident and alien — enjoy the special religious free exercise protections of the RFRA."

Write lawyers for Guantanamo detainees who want to be able to meet in groups for communal prayer in observance of Ramadan.

Assuming the Religious Freedom Restoration Act applies to the detainees, the question is whether being deprived of communal prayer is a substantial burden on religion and, if so, whether the government has a compelling interest that cannot be served by a less restrictive means.

The linked article makes it seem as though the government is using access to communal prayer as a positive incentive to get prisoners to give up their hunger strike and not because of security needs. If that's so, then it should be easy to posit less restrictive means of deterring hunger striking. Think of incentives that have nothing to do with religion — any punishment or privilege that isn't related to a religious need might suffice.

2 problems with that argument: 1. Maybe access to communal prayer is the only incentive that will work on these particular individuals, who are, after all, far into a process of physically punishing themselves by refusing to eat, and 2. Maybe these individuals see everything in terms of religion, so that any punishment or privilege the government could come up with would also burden their religion.