Many UK CMLers have strong feelings about this disaster and the fact that it may have effected them. Should be worth viewing.
'On October 10, 1957, fire began to spread through the core of the structurally volatile Windscale nuclear reactor, part of the present-day Sellafield site, releasing radioactive dust into the skies of Britain. '
This link gives more info
http://news.bbc.co.uk/1/hi/sci/tech/7030281.stm
Pennie.