In November 1995 a “dirty bomb” comprised of high explosives and cesium was uncovered in Moscow’s Ismailovsky Park, and in December 1998 another cache of radioactive material was found attached to an explosive charge near a railroad track in Chechnya. Both devices were disarmed by Russian security forces.<ref>https://www.pbs.org/wgbh/nova/dirtybomb/chrono.html</ref> | In November 1995 a “dirty bomb” comprised of high explosives and cesium was uncovered in Moscow’s Ismailovsky Park, and in December 1998 another cache of radioactive material was found attached to an explosive charge near a railroad track in Chechnya. Both devices were disarmed by Russian security forces.<ref>https://www.pbs.org/wgbh/nova/dirtybomb/chrono.html</ref> |