September 16, 2008 (32 images)

U.S. Defense Secretary Robert M. Gates (2nd-R) shakes hands with a reporter while walking with Pentagon Press Secretary Geoff Morrell (R) while visiting Camp Victory in the green zone of Baghdad, Iraq on September 16, 2008. Secretary Gates is in southwest asia to meet with Iraqi and Afgan leaders and to preside over the changing of the Commanding General of Multi-National Force Iraq ceremony. (UPI Photo/ Jerry Morrison/DOD)

Chairman of the Joint Chiefs of Staff Navy Adm. Mike Mullen thanks soldiers for their service during a visit to Baghdad on September 16, 2008. Mullen traveled to Baghdad to be the presiding officer for the Multi-National Force-Iraq change of command. (UPI Photo/Adam M. Stump/DOD)

Traders conduct business on the floor of the New York Stock Exchange as the market continues to fluctuate on the news that the Federal Reserve announces its decision to leave interest rates unchanged on September 16, 2008 in New York City. (UPI Photo/Monika Graff)

Commander Dave Edwards (L), Air Station Houston executive officer, greets President George W. Bush upon arrival at the air station in Texas on September 16, 2008. President Bush thanked the men and women at Air Station Houston for their hard work and dedication before, during and after Hurricane Ike. Following his arrival, President Bush went on an overflight of the Texas coastline affected by the hurricane. (UPI Photo/Renee C. Aiello/Coast Guard)