THE HAGUE – Russia's representative to the global chemical weapons watchdog has hit back at calls for a transparent investigation of the nerve agent poisoning of opposition leader Alexei Navalny, saying Moscow “doesn't owe anything to anybody.”The comments by Ambassador Alexander Shulgin to a meeting of the Organization for the Prohibition of Chemical Weapons, or OPCW, were published Wednesday on the website of Russia's embassy in The Hague, a day after Germany said that tests conducted at labs designated by the watchdog confirmed that Navalny was the victim of an attack with a Soviet-era Novichok nerve agent.Anti-corruption investigator Navalny was flown to Germany two days after falling ill on Aug.