What will happen to U.S. prisoners at Gitmo?

• Story Highlights
• President Obama has ordered U.S. prison in Cuba closed by next year
  
• Move prompts questions about what to do with Gitmo's 240 prisoners
  
• Options include: U.S. trials, military commissions, release, resettlement
  
• CNN.com special report details U.S. war prisons and treatment of detainees