Japan's policemen in protective gears investigate a container during a drill for the Proliferation Security Initiative Exercise (PSI), at a port in Yokohama, south of Tokyo, October 15, 2007. Japan, the U.S. , Australia, France, New Zealand and Singapore took part in the three-day naval drill to improve their capability to prevent possible transport of weapons of mass destruction by sea. Reuters Pictures logo Reuters Pictures 52 months ago

Japan's policemen in protective gears investigate a container during a drill for the Proliferation Security Initiative Exercise (PSI), at a port in Yokohama, south of Tokyo, October 15, 2007. Japan, the U.S. , Australia, France, New Zealand and Singapore took part in the three-day naval drill to improve their capability to prevent possible transport of weapons of mass destruction by sea.