Detainees unlikely to be charged

So let me get this these guys have been held in prison since 2002 without access to Lawyers and had no or very little contact with the outside world. They have been accused of contributing to the acts of terrorism but never actually been charged. Now after 2-3 years they are being released without charge.

Am I the only one who thinks the American government has wasted a whole load of money they have raised from the hardworking American people?