Adm. Mike Mullen addresses the audience at Georgia Tech University U.S. Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff addresses audience members at a Conversations with the Country stop at Georgia Tech University, Atlanta, Ga., Sept. 13, 2011. Mullen is on a two-day trip with stops in New York City and Miami in his final domestic trip as chairman. SHARE: Download: Full Size (0.03 MB) Credit: VIRIN: 376136-H-ATI21-056.jpg Photo Gallery