Secretary of State Antony Blinken said Saturday the United States was "deeply troubled" by Russia's growing intolerance of free speech, on the sixth anniversary of opposition politician Boris Nemtsov's murder. Nemtsov, a vocal opponent of President Vladimir Putin, was shot and killed on a Moscow bridge near the Kremlin on February 27, 2015. "We remain deeply troubled by the Russian government's growing intolerance of all forms of independent expression," Blinken said in a statement. ft/mjs