WREATH LAYING U.S. Defense Secretary Leon E. Panetta lays a wreath at Brazil's World War II Memorial in 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 (0.07 MB) Credit: VIRIN: 291221-P-AAG70-121.jpg Photo Gallery