Panda plays in snow at National ZooThe panic followed the emergence of pictures showing a cloud of vapour pouring from Leningrad Nuclear Power Plant, some 50 miles from St Petersburg.The authorities insisted that the was no radioactive leakage after a "defect" which caused a steam emission from the turbine section of the station - the most westerly in Russia - but people did not believe the "no danger" claim.Radio Svoboda...