Vitaly Razdobudko, is one of the growing number of Russians who have embraced radical Islam, creating a security nightmare for Russia's anti-terrorism squads. Inured to more than a decade of terrorist attacks on their trains, planes, schools, hospitals and theatres, ordinary Russians are facing up to an uncomfortable truth: the terrorists are now drawn from their own ranks, rather than exclusively from the impoverished Muslim population of the country's North Caucasus region. "The appearance of Slav Muslims in the terrorists' ranks is threatening to become a tendency," Sergei Arutyunov, an expert at Russia’s Academy of Sciences, said poverty was driving...