Barbara A. Grewe
Barbara Grewe is a Senior Policy Advisor for The MITRE Corporation where she specializes in information sharing issues in the intelligence community, with a particular focus on information sharing between the federal government and its state and local partners. Prior to joining MITRE, Barbara served in the federal government for over 16 years. She was a Senior Counsel for Special Projects on the National Commission on Terrorist attacks Upon the United States – more commonly known as the 9/11 Commission. There she was in charge of investigating the missed opportunities to stop the 9/11 plot, the government’s response to warnings of possible attacks, the wall between law enforcement and intelligence, the Moussaoui investigation, and the response to the bombing of the U.S.S. Cole. She also led a team looking at how the FBI handled intelligence prior to 9/11 and its subsequent reforms. She was a key drafter of two staff statements regarding what the intelligence community knew about the hijackers and possible threats prior to the attacks and presented one of the staff statements during one of the Commission’s televised public hearings. She also wrote significant parts of the best selling final report, including Chapter 8: “The System Was Blinking Red.”
In addition to her work on the 9/11 Commission, she served as a federal prosecutor in the United States Attorney’s Office for the District of Columbia, as a Special Investigative Counsel for the Department of Justice Inspector General (including working on its review of the FBI’s handling of intelligence prior to September 11); and in the Senior Executive Service as Associate General Counsel to the Government Accountability office. Prior to government service she was in private law practice at Covington & Burling and did management consulting at McKinsey & Co. Barbara holds a J.D. from the University of Michigan Law School, a BA in politics and economics from Oxford University where she was a Rhodes Scholar, and a BA in economics from Wellesley College.

