Investigation signals new crackdown on Russian opposition

In a new sign of a widening crackdown on Russian opposition, a criminal investigation has begun into leftist leader Sergei Udaltsov and several other opposition activists for allegedly plotting mass riots.
Mr Udaltsov, a 35-year-old, shaven-headed Communist who wore a Stalin T-shirt for his wedding, has been one of the most recognisable faces of last winter's anti-government protests in Moscow, which were peaceful.