Take any country that has laws against hate crimes, inspiring hatred and genocide and so on. The first thing they would do is ban the Old Testament. There's nothing like it in the literary canon that exalts genocide, to that extent. And it's not a joke either. Like where I live, New England, the people who liberated it from the native scourge were religious fundamentalist lunatics, who came waving the holy book, declaring themselves to be the children of Israel who are killing the Amalekites, like God told them.

It also seems beyond controversy that moral responsibilities are greater to the extent that people "have the resources, the training, the facilities and opportunities to speak and act effectively."

There are very interesting books about these events, for instance one by a very well-known American historian named William R. Polk called Violent Politics. It's a record of what are basically guerrilla wars from the American Revolution right up through the wars in Afghanistan and Iraq.

I don't think that any deal was needed: Iran was not a threat. Even if Iran were a threat, there was a very easy way to handle it - by establishing a Middle East Nuclear Weapons Free Zone, which is something that nearly everyone in the world wants.

And if you look at all this academic work in the conferences and so on there's a constant theme that terrorism is extremely hard to define and we therefore have to have a deep thinking about it. And the reason it's hard to define is quite simple. It's hard to find a definition that includes what they do to us but excludes what we do to them. That's quite difficult. So it takes a global war on terrorism.

As for geoengineering, there have been serious general critiques that I think cannot be ignored, like Clive Hamilton's, along with many positive assessments. It is not a matter for subjective judgment based on guesswork and intuition. Rather, these are matters that have to be considered seriously, relying on the best scientific understanding available, without abandoning sensible precautionary principles.

Intellectuals (in the standard sense of the term, not [ Edward] Said's prescriptive sense) are the people who write history.