Protesters shout slogans and hold a poster depicting Russian President Vladimir Putin and reading "Putin, killer!" during a demonstration against Russia on November 27, 2015, in Fatih district in Istanbul. Russia's Foreign Minister Sergei Lavrov on November 27 said that Ankara has crossed the line by shooting down a Russian warplane this week and warned the incident could severely undermine Turkey's interests. AFP PHOTO / CAGDAS ERDOGAN / AFP / CAGDAS ERDOGAN        (Photo credit should read CAGDAS ERDOGAN/AFP/Getty Images)