On January 22, new President Barack Obama signed an executive order promising that Guantanamo would go -- within a year. But closing the prison in Cuba -- and figuring out where to put the 229 suspected terrorists now held there -- has proved complicated. Moving at least some of them to facilities in the United States is still a possibility, although Supermax, the federal maximum-security prison down in Florence, is already full with such residents as 9/11 conspirator Zacarias Moussaoui,