The government is to set up an enquiry into how a damaging leak of information about Sellafield safety occured - threatening the jobs of hundreds of BNFL managers.

It is not yet known what caused the leak, but experts say it is nothing to worry about.

Said one expert at the plant, "There is no cause for alarm. Everything is under control. A report did indeed get out, but it has now been firmly denied. It will not happen again."