The Pentagon's plan to close the Guantanamo Bay prison facility, released Tuesday, does not identify -- nor rule out -- a location in the U.S. to house the detainees.
Defense officials had surveyed a few areas in Colorado, including the Supermax prison near Canon City.
"I suppose I would prefer not to have war criminals or war prisoners in our community," Canon City Mayor Tony Greer told NPR last year.
But Jonathan Hansen, a senior lecturer at Harvard University and author of "Guantanamo: An American History," told Colorado Matters in October that he thinks concerns over security are overblown.
Colorado could still house the detainees -- if political obstacles are overcome. Congress recently approved legislation that bans the military from moving Guantanamo prisoners to the country, the New York Times reports.