Thousands of anti-nuclear protestors were awaiting the arrival of a train carrying radioactive nuclear waste from France to its destination in northern Germany Saturday. So far, a number of largely peaceful protests have slightly slowed the progress of the train since it left Normandy in France on Wednesday. Activists blocked the train tracks at the town of Neunkirchen Friday afternoon where the train stopped for five hours to change engines and television pictures showed activists removing ballast stones from under the tracks in a bid to slow the train's progress. There were isolated outbreaks of violence on Thursday and Friday in Metzingen, near Gorleben, where 10 masked people attacked police with bricks and smoke bombs but managed to escape arrest, said an AFP news agency photographer at the scene. Police said unknown assailants had set fire to two patrol cars.