My concern tonight is the following: Why is it that here in the United States we have such difficulty even imagining a different sort of society from the one whose dysfunctions and inequalities trouble us so? We appear to have lost the capacity to question the present, much less offer alternatives to it. Why is it so beyond us to conceive of a different set of arrangements to our common advantage?

Some people, myself included, advocated foreign intervention in Bosnia and Kosovo while opposing our adventure in Iraq. Sam Moyn might find this inconsistent, but (on this occasion at least) it is the world that is inconsistent, not us. During the Balkan wars individuals’ rights were under ascertainable threat in real time. Outside intervention could make a difference, and it did. This was not the case in Iraq. We should always be suspicious of the invocation of universal “rights” as a cover for sectional interests. But it doesn’t follow from this that talk of rights is “really” always about something else. Sometimes it is, and sometimes it isn’t. How, then, should we adjust our response? Well, there is a serviceable Keynesian answer to that: "When the facts change, I change my mind. What do you do?"

It is the liberals, then, who count. They are, as it might be, the canaries in the sulphurous mineshaft of modern democracy. The alacrity with which many of America's most prominent liberals have censored themselves in the name of the War on Terror, the enthusiasm with which they have invented ideological and moral cover for war and war crimes and proffered that cover to their political enemies: all this is a bad sign. Liberal intellectuals used to be distinguished precisely by their efforts to think for themselves, rather than in the service of others. Intellectuals should not be smugly theorising endless war, much less confidently promoting and excusing it. They should be engaged in disturbing the peace – their own above all.