By Maria Tsvetkova and Polina Nikolskaya MOSCOW (Reuters) - A Russian court convened on Tuesday to consider jailing Kremlin critic Alexei Navalny for up to three and a half years in a case that has sparked nationwide protests and talk of new Western sanctions. Navalny, one of President Vladimir Putin's most prominent critics, was arrested at the Russian border on Jan. 17 after returning from Germany where he had been recovering from a nerve agent poisoning in Russia. Navalny accuses Putin of ordering his murder, something the Kremlin denies. It in turn has suggested that Navalny is an asset of...
