David Cairns, MP for Inverclyde and also deputy Scottish Secretary in London, has criticised the SNP's anti-nuclear stance. He does not appear to be aware that a combination of renewables (wind, hydro, tides and biomass) can provide a predictable and steady source of electricity.

He is also unaware that previous decisions on nuclear were disastrous for Scotland. Dounreay is probably the worst energy decision made in the UK. It produced virtually no electricity and the clean-up costs are enormous. Meanwhile, the decision to build Torness killed the Scottish coal industry and led to Scotland losing out on renewable energy jobs. Non-nuclear Denmark has more than 25,000 wind energy jobs while Scotland has only a few hundred.

Kerr MacGregor, 31 Temple Village, Midlothian.