/table> Some Fort Detrick Labs Closed 10:25 AM Jul 20, 2004 10:25 am US/Eastern Frederick, MD (WJZ)Federal agents are combing a number of laboratory suites at Fort Detrick in Frederick for evidence of the 2001 anthrax attacks. Fort Detrick spokesman Charles Dasey says the labs have been closed since Friday at the U.S. Army Medical Research Institute of Infectious Diseases, home to the Army's biological warfare defense program. A law enforcement source tells The Associated Press that the activity is related to the anthrax mailings that killed five people and sickened 17 in October of 2001. FBI agents have frequently...