The National Audit Office (NAO) is warning of the immense financial and technical challenges that lie ahead in decommissioning the giant Sellafield nuclear site in West Cumbria.
The NAO expresses particular concern over the time and costs involved in cleaning up highly radioactive material held in deteriorating legacy ponds and silos.
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Calmer conditions - for now.
The 12.5 hour walkout by 63 GMB members got under way at 6am this morning and will continue until 6.30pm this evening.
37-year-old Graeme Haddon pleaded guilty to the offence which happened in his home village of Lamancha near West Linton at the weekend.