SECURITY SIGNING U.S. Defense Secretary Robert M. Gates and Brazilian Defense Minister Nelson Jobim sign a Security of Military Information Agreement during a bilateral meeting in Santa Cruz, Bolivia, Nov. 21, 2010. Gates and Jobim are in Bolivia to attend a conference for Western Hemisphere defense ministers. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 414528-N-ZSP57-262.jpg Photo Gallery