Workers walk in front of the destroyed government building in Oslo
Workers walk in front of the destroyed government building in Oslo, July 27, 2011. The Norwegian anti-Islamic zealot who killed 76 people claims he worked with others, but finding far-right groups in their mainly online haunts will be tough for police who for years gave Islamist militants top priority. Police and experts point to the Internet's role in spreading the racist material that shaped killer Anders Behring Breivik's extreme views, but also highlight the difficulty in policing dynamic online forums without undermining civil liberties. REUTERS/Wolfgang Rattay (NORWAY - Tags: CIVIL UNREST CRIME LAW)