THIS WEEK Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, appears on ABC's This Week with George Stephanopoulos, Washington, D.C., May 24, 2009. Mullen said the detention facility at Guanatanamo should be closed, adding that it has served as a recruiting symbol for Islamic extremists to take up arms against the United States. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 115623-I-IFC73-566.jpg Photo Gallery