Guantanamo Bay. What can you do about this?

More than 80% of the prisoners at Guantanamo Bay were captured by Pakistan. They were handed over by Pakistan directly to the US authorities without following any due legal process. Many of the prisoners were stripped naked, fun made of their naked bodies, had their money taken and were tortured by Pakistani Intelligence agents, before being sent to Guantanamo Bay. What can you do about this?