The documents describe an operation known as MILK COOKIES, based out of Fort Meade and run in conjunction with the U.S. Postal Service. COOKIES is the interception of the letters while MILK feeds them through a complex series of algorithms to spot any hidden messages.
Speaking on condition of anonymity, a former senior administration official defended the program: ”We’re only looking for any unusual presents, like children who ask Santa for pressure cookers, large amounts of ammonium nitrate fertilizer, hyzadrine rocket fuel, things like that. I mean a six-year old with a hammer is bad enough; just try to imagine that same six-year old with a truck bomb.”