 It also suggests Russian authorities are taking Navalny's growing role in Russia's exiled opposition seriously. In the wake of her husband's still unexplained death in a remote Arctic prison camp this past February, Navalny announced she would carry on her husband's political work. Responding to the arrest warrant, Navalny made clear she blames President Vladimir Putin for the death of her husband, saying the Russian leader belonged in the same prison cell where her husband perished. The Kremlin denies any involvement in Navalny's death. Charles Mainz, NPR News, Moscow.