In a secret memo, Gen. George Casey, Jr., director of the US military’s Joint Staff, warns Gen. Michael DeLong at Central Command (Centcom) that the “CIA has advised that the techniques the military forces are using to interrogate high value detainees (HVDs)… are more aggressive than the techniques used by CIA who is [sic] interviewing the same HVDs.” DeLong replies to Casey that the techniques being used are “doctrinally appropriate techniques” in line with Army regulations and Defense Secretary Donald Rumsfeld’s direction. [New Yorker, 6/17/2007] It will later come out that the CIA was using techniques on these detainees widely considered to be torture, such as waterboarding. But little is known about military treatment of these detainees or the techniques they used.