From YahooNews: A 2006 Immigration and Customs Enforcement investigation into the purchase of child pornography online turned up more than 250 civilian and military employees of the Defense Department — including some with the highest available security clearance — who used credit cards or PayPal to purchase images of children in sexual situations. But the Pentagon investigated only a handful of the cases, Defense Department records show.
Among those charged were Gary Douglass Grant, a captain in the Army Reserves and a judge advocate general, or military prosecutor. After investigators executing a search warrant found child pornography on his computer, he pleaded guilty last year to state charges of possession of obscene matter of a minor in a sexual act in California. Others included contractors for the NSA with Top Secret clearances; one of them — a former contractor — fled the country after being indicted and is believed to be in Libya.
But the vast majority of those investigated, including an active-duty lieutenant colonel in the Army and an official in the office of the secretary of defense, were never charged. On top of that, 212 people on ICE’s list were never investigated at all.