VATICAN CITY U.S. Defense Secretary Leon E. Panetta attends an audience with Pope Benedict XVI at the Vatican in Vatican City, Jan. 16, 2013. Panetta is on a six-day trip to Europe to visit with defense counterparts and troops. SHARE IMAGE: Download Image: Full Size (0.08 MB) Photo By: VIRIN: 404877-K-FVL50-181.jpg Photo Gallery