Russia once again accused Ukraine of preparing a 'dirty bomb' to strike its men or territory. One of Russia's top spymasters said on Monday he hoped that the U.N. nuclear watchdog and the European Union would look into Ukrainian nuclear activity that he said might signal Kyiv was working on a "dirty bomb", Reuters has reported. Sergei Naryshkin, the head of Russia's SVR foreign intelligence service, did not provide documentary evidence to back his assertions. Watch the video for more.