Over 3.5 million people attended night time Easter services across Russia yesterday.  Another suicide attack has killed at least two police officers in Ingushetia, and a bomb on a railway track derailed a freight train in Dagestan, although no one was hurt.  Investigators have linked the attacks to the Moscow bombings and to the North Caucasus.  The Times reports on Doku Umarov’s war, as the second bomber, 28-year-old student Maryam Magomedov, is named.  Masha Lipman in the Washington Post looks at the roots of Russia’s problems with radical Islam.  Boris Gryzlov is trying to connect two newspapers, Vedomosti and Moskovsky Komsomolets, with terrorism, blaming critical articles that were published after the first attacks on the Moscow metro.