South Korea Holds Anti-Chemical Terror Drill In Seoul

SEOUL, SOUTH KOREA - MAY 08: Emergency services personnel wearing protective clothing participate in an exercise simulating a chemical attack on a subway station with civilians and members of the military on May 8, 2013 in Seoul, South Korea. The United States, Japan and South Korea remain on alert despite reports that North Korea has removed a set of ballistic missiles from a launch site. (Photo by Chung Sung-Jun/Getty Images)