Answer: nuclear power.

I’m not sure that anyone would do the same in power, though – a very difficult balance to strike when a truly nasty regime owns a resource we cannot do without (at least without years of preparation).

What would the plan be if they turned the oil off?

Liberal Democrats oppose human rights violations in whatever circumstances they occur.

Tories and Blairites, by contrast, are against them only where the perpetrators obstruct US foreign policy or the interests of big business (the two generally coincide). While (Dis)Respect and the left in general only oppose them where the perpetrators are American puppets.

Thus the Tories defended General Pinochet and the apartheid regime in South Africa, while many in the Labour Party praised the Soviet Union and Maoist China.

Vince has done immeasurably better than the former SDP MP, the late Dr Jesse Dickson Mabon.

Recall the early 1980s and a TV film, “Death of a Princess”, which was deeply critical of the Saudi theocratic oligarchy.

The Saudis cried foul and recalled their ambassador. UK politicians from Lord Carrington downwards queued up to perform anilingus on the Saudi princes, and the unlamented Dr Mabon, on “Question Time”, called “Death of a Princess” a “heinous film” and said that it is not for us morally inferior Westerners to criticise the customs of this deeply religious and worthy country.

Certainly, it ill behoves Dr Liam Fox, a practicing Roman Catholic alleged to have a “gay past”, to jump to the Saudis’ defence. Sodomy is a capital offence in Saudi Arabia, and Christians get 1,000 strokes of the cat.

Saudi Arabia is a product of the post- World War 1 carve-up of the Middle East between the British, the Americans and the French (the latter got the bits the others didn’t want). In fact, it was created as a joint venture between the Al-Sauds and the Rockefeller family.

Saudi Arabia has done more than any other nation to promote Islamic fundamentalism and terrorism. It is at least partly responsible for the Taliban and Al-Qaeda.

Let us all cry out: well done Vince!

Could this be a good pitch for foreign affairs. That is where I would like to see him I think.