There is a lot of argument about Guantanamo Bay. This camp is a navy base and would sometimes hold people who had escaped from the Cuban government by sea. Now it also has a prison for people who oppose the United States, including some soldiers. Some people have called it a concentration camp. George W. Bush has said that it is sometimes used for prisoners of war, but many human rights groups accuse America of keeping people from countries they are not at war with. This was shown to be sometimes true when British prisoners were returned home in 2003.