It appears that a simple mention of crimes committed by Stalin's regime is enough to set some pro-Kremlin people in Moscow on fire. Or, more precisely, it's enough to make them set things on fire.
Edvīns Šņore, a young Latvian director, recently completed a documentary The Soviet Story, which details crimes of the Soviet regime. The funding for the documentary was provided by the European Parliament and it premiered there on April 9. The documentary is showing in Latvia now and might show in a few other Eastern European nations.
Young Russia (Rossija Molodaya) is a political youth organization in Russia. They are lead by Maxim Mischenko, a member of Russian parliament from Putin's United Russia party and the movement appears to be something like the infamous Nashi. When they learned about the documentary, they staged a protest near Latvian embassy in Moscow, complete with a hanging and burning of a doll of the director Edvīns Šņore:
Besides showing their unhappiness, "Rossija Molodaya" also demanded that Latvia bans the showing of The Soviet Story. I guess they are unaware of the freedom of speech...
UPDATE: I highly recommend reading Edward Lucas' column on the same topic from the Economist. Also, if anyone is looking for the "Soviet Story" homepage, click here.