the exact date, but had known about it for only a few weeks. The briefings were from the National Drug Intelligence Center and Assistant Attorney General Lanny Breuer. The Justice Department said that those briefings were about a different case started before Holder became Attorney General, and that while he had known about Fast and Furious, he didn't know the details of the tactics being used. On October 31, 2011, after the release of subpoenaed documents, Assistant Attorney General Lanny Breuer stated he found out about gunwalking in Operation Wide Receiver in April 2010, and that he wished he had alerted the deputy or the attorney general at the time. The following day, in testimony before the Senate Judicial Committee in a hearing on International Organized Crime, when asked if he had reviewed the letter before it was sent to Senator Charles Grassley on February 4, 2011, denying gunwalking, Breuer replied, "I cannot say for sure whether I saw a draft of the letter that was sent to you. What I can tell you, Senator, is that at that time I was in Mexico dealing with the very real issues that we're all so committed to." On November 8, 2011, Holder stated for the first time in Congressional testimony that gunwalking was used in Fast and Furious. He remarked that the tactic is unacceptable, and that the operation was "flawed in its concept and flawed in its execution". He further stated that his office had inaccurately described the program in previous letters sent to Congress, but that this was unintentional. Reiterating previous testimony, he said that he and other top officials had been unaware that the gunwalking tactic was being used. Holder stated that his staff had not shown him memos about the program, noting, "There is nothing in any of those memos that indicates any of those inappropriate tactics that are of concern. Those things were not brought to my attention, and my staff, I think, made the correct decision in that regard." That same month, ex-US Attorney Burke admitted to leaking sensitive documents about ATF agent and whistleblower Dodson. Senator Grassley expressed concern that the Justice Department was using Burke as a scapegoat to protect higher officials and vowed to continue his probe. On December 2, 2011, the Justice Department formally withdrew its statement of February 4, 2011, denying gunwalking, due to inaccuracies. Later that month, documents showed