Just Security's Steve Vladeck's writes that last week's decision finding a Department of Justice's Office of Legal Counsel memo is exempt from the Freedom of Information Act "may have the effect, unintended or otherwise, of insulating virtually all nonpublic OLC memos and opinions from FOIA requests–regardless of their subject-matter or sensitivity." (The opinion regards the FBI's use of exigent National Security Letters.)
Vladeck writes the D.C. Circuit reasoned that the memo was exempt under Exemption 5 for "'inter-agency or intra-agency memorandums or letters which would not be available by law to a party other than an agency in litigation with the agency.'" The court said the memo was not the "working law" of the FBI. Documents developed under a federal agency's working law are not exempt under Exemption 5. The problem is that Office of Legal Counsel's "memos are generally viewed as authoritative guidance to the rest of the Executive Branch when it comes to the scope of the government’s legal authorities–whether or not they are 'adopted' as such," Vladeck concludes.