Mary Ellen Callahan
Mary Ellen Callahan was a Chief Privacy Officer and Chief Freedom of Information Act Officer (FOIA) (2009 - 2012) of the United States Department of Homeland Security. She was appointed by Secretary Napolitano in March 2009. Callahan is a graduate of the University of Pittsburgh, on whose Board of Trustees she sits, and The University of Chicago Law School.
- Department of Homeland Security: Bio of Chief Privacy Officer: Mary Ellen Callahan
- Jenner and Block: Mary Ellen Callahan
- "Jenner and Block hire Mary Ellen Callahan". Jenner and Block. September 4, 2012. Retrieved 2012-12-13.
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