A U.S. soldier checks the damage at offices of the U.N.'s refugee agency, the UNHCR, caused by a suicide bomber in Kandahar, Afghanistan, on Oct. 31, 2011. The attack killed four people and severely damaged the U.N. agency's building, Afghan officials said. (Associated Press)

Photo by: Allauddin Khan

A U.S. soldier checks the damage at offices of the U.N.'s refugee agency, the UNHCR, caused by a suicide bomber in Kandahar, Afghanistan, on Oct. 31, 2011. The attack killed four people and severely damaged the U.N. agency's building, Afghan officials said. (Associated Press)