FAREWELL SHAKE U.S. Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, bids farewell to Iraqi Gen. Babakir Zebari after meeting at the Joint Visitors Bureau in Baghdad, Aug. 2, 2011. Mullen is on a five-day USO tour with comedian Jon Stewart, NBA Legend Karl Malone and magician David Blaine visiting troops in Afghanistan and Iraq. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 119863-Q-ZAE61-774.jpg Photo Gallery