Sellafield's senior managers have admitted that the cost of cleaning up the nuclear reprocessing site is likely to rise.
They have faced questions from MPs on the House of Commons Public Accounts Committee, who made a visit to Workington.
The committee wants to know how long it will take to deal with hazardous waste, and how much it will cost the taxpayer.
Hannah Lomas was at the meeting.
You can watch her report here:
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Continuing cloudy and mild with outbreaks of rain, heavy at times over Galloway
Cloudy with outbreaks of rain, heaviest in west
Emma Jesson brings you Sunday night's forecast