Rep. Tim Murphy of Pennslyvania and Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, participate in a town hall forum at Soldiers and Sailors Memorial Hall and Museum at the University of Pittsburgh, April 19, 2010. Rep. Tim Murphy of Pennslyvania and Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, participate in a town hall forum at Soldiers and Sailors Memorial Hall and Museum at the University of Pittsburgh, April 19, 2010. SHARE: Download: Full Size (3.96 MB) Tags: Photo Essays Credit: VIRIN: 709588-U-QBO66-065.jpg Photo Gallery