Why is trying Gitmo detainees troublesome?
Under normal circumstances, the prisoners would be tried at US criminal courts. The Bush administration had created special military tribunals to try the Gitmo detainees. Obama has argued against military tribunals however some prisoners possess very sensitive material, which the CIA and Pentagon believe should not be open to the public: these prisoners would need a new system of justice. This would however be opposed by Democrats as they are opposed to the creation of new courts with fewer rights.