scubamage writes "By denying security clearance to federal attorneys from the Office of Professional Responsibility (OPR) seeking to gather evidence in the NSA illegal surveillance scandal, President Bush has effectively blocked the Justice Department's investigation into the matter of who exactly authorized the illegal actions to take place. The president is apparently able to strictly control who does and does not have security clearance to examine documents regarding the program, citing that giving more people access would endanger national security. His denial is the first of its kind in American history. To quote the article, 'Since its creation some 31 years ago, OPR has conducted many highly sensitive investigations involving Executive Branch programs and has obtained access to information classified at the highest levels,' chief lawyer H. Marshall Jarrett wrote in a memorandum released Tuesday. 'In all those years, OPR has never been prevented from initiating or pursuing an investigation.'"