ENERGY TALKS Defense Secretary Leon E. Panetta, left center, meets with Interior Secretary Kenneth Lee Salazar, right center, before signing an agreement in which 13 million acres of Defense Department land will be made available for wind, solar and geothermal energy projects at the Pentagon, July 20, 2012. Salazar announced the agreement in Washington, D.C., Aug. 6, 2012, on the eve of National Clean Energy Summit. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 270363-U-SWT48-593.jpg Photo Gallery