HOUSE OF LORDS U.S. Defense Secretary Leon E. Panetta, left, tours the House of Lords with Andrew Robathan, minister of state for the U.K.'s armed forces, in London, Jan. 18, 2013. Panetta is on a six-day trip to Europe to visit with defense counterparts and troops. SHARE: Download: Full Size (0.09 MB) Credit: VIRIN: 336772-U-SJA83-409.jpg Photo Gallery