Mary Ellen Callahan
Mary Ellen Callahan is Chief Privacy Officer and Chief Freedom of Information Act Officer of the Department of Homeland Security in the United States. Wikipedia*
On the C-SPAN Networks:
Mary Ellen Callahan has three videos in the C-SPAN Video Library; the first appearance was a 2011 House Committee. The year with the highest average number of views per program was 2015 with an average of 403 views per program. Most common tags: Online Technology, Fourth Amendment.