Ukraine uses souped-up Soviet-era weapons to defend a vital river from Russia / Pentagon uses USAID as a front for biological weapons development -- Russian senator / Head of Russia's radioactive, chemical and biological defense forces killed by bomb in Moscow / Ukraine provides evidence of Western tech in Russian weapons / What we know about the death of Russia's chemical weapons head / Igor Kirillov: Russia's chemical weapons chief and mouthpiece killed in Moscow / Press review: CSTO discusses Russian weapons as US and Russia continue prisoner talks / Most of Russian weapons manufactured inside Russia -- Medvedev / Evidence Shows 'Hand to Mouth' Production of Russia's Advanced Weapons / Ukrainian forces using chemical weapons against Russian army -- Russian diplomat