A Wall Street Journal article on 5/13/4 says concerning the prison where photos of Iraqis being abused and humilated by the U.S. Army surfaced, "Gen. Miller said he plans to reduce the prisoner population at Abu Ghraib from the 3,800 who are there now to as few as 1,500 by June 15. In January, there were about 7,000 prisoners at the prison."
No indication about how he plans to reduce it.