TROOP TALK U.S. Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, addresses troops during an all-hands call at Al Faw Palace 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 IMAGE: Download Image: Full Size (0.05 MB) Photo By: VIRIN: 249606-D-EIR38-356.jpg Photo Gallery