ANSWERING QUESTIONS U.S. Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, answers audience members' questions with former Secretary of State George Schultz after Mullen's speech at the Hoover Institution Conference on Nuclear Deterrence at Stanford University in Palo Alto, Calif., Nov. 12, 2010. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 489423-T-WGN92-600.jpg Photo Gallery