A nuclear expert has called for nuclear reactors in the UK to be "immediately shut down" after secret documents written by government inspectors reveal they contain structural defects.
The documents - which were passed to Greenpeace days before Tony Blair is expected to give the go-ahead to a new generation of nuclear power stations - show that the government's Nuclear Safety Directorate (NSD) has identified cracks in the cores of up to 14 UK reactors, rendering them at increased risk of a radiological accident.