TV review: Britain's nuclear secrets

Britain's Nuclear Secrets - Inside Sellafield - BBC4 (on iPlayer until 10 September)

In what was obviously intended as a positive story on the nuclear industry, respected physicist Jim Al-Khalili took a camera crew into the nuclear complex at Sellafield in Cumbria.

Even though he supports nuclear power, what he showed was scary to say the least, while what he omitted was even worse.

Sellafield, originally known as Windscale, was set up in 1947. Its purpose: to produce plutonium to build the UK's very own nuclear deterrent. Nuclear reactors for 'peaceful' electricity generation only arrived in 1956.

However, as early as 1957, a massive fire in one of the reactors spewed radioactive material over the surrounding countryside. The fire was mentioned, but not that this reactor still contains 15 tons of highly radioactive material.

We were shown 'storage ponds', open ponds of water containing nuclear waste and radioactive sludge. We were not told that in 50 years there have been at least 21 serious incidents involving leakage of radioactive material. But even with perfect containment, some radioactive waste remains highly dangerous for tens of thousands of years.

One issue hardly got a mention - in the 1980s the government had the bright idea of reprocessing spent fuel from nuclear reactors around the world into usable reactor fuel. The THORP reprocessing plant finally came into operation in 1997 at a cost of Ł1.8 billion. Other countries were happy to send us their old fuel rods, but not to take back the processed fuel - Sellafield became the world's nuclear dustbin.

Reprocessed material is rendered into thousands of 'stable' glass disks, but these continue to generate heat and must be cooled. A safe long-term solution is yet to be found.

What emerged from Al-Khalili's account is that Sellafield is a long-running disaster, one which costs over Ł12.6 billion a year (not mentioned). In addition, the various schemes to 'clean up' the site are projected to cost around Ł80 billion.

Conclusion? Nuclear power as a source of energy is an expensive and dangerous dead end.

Geoff Jones, Socialist Party Wales

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