MARINE OBSERVATION U.S. Defense Secretary Leon E. Panetta observes a Brazilian Marine Corps demonstration with Adm. Ferando Antonio at Governor's Island Marine Base, Rio de Janeiro, April 25, 2012. Panetta is on a five-day trip to the region to meet with counterparts and military officials in Colombia, Brazil and Chile to discuss an expansion of defense and security cooperation. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 017845-T-FDU71-612.jpg Photo Gallery