I have all along been one of those who believes that renewing the Trident missile system would be completely without purpose and a huge waste of public money.
For the UK to go on having its own supposedly "independent" nuclear weapon is just idiotic macho posturing. This would have been so even were it not going to cost us £20 billion or more. It's a particularly expensive example of hollow gesture politics.
Everybody knows perfectly well that the thing would never be used independently of the US, and would be useless in the face of the kind of threat nowadays potentially facing us.
It is excellent news that the Liberal Democrats have come round to my view on this, with Nick Clegg now announcing a clear policy of opposition to Trident, replacing their previous fudged approach.
As previously on the Iraq war, the LibDems are adopting a progressive, commonsense line in sharp contrast to the two backward-looking conservative parties, Lab and Con.
I was already in very little doubt that I was going to vote LibDem when the general election comes round, and now I am in even less doubt. I'm sure I am not alone in this.