I remember a couple of days after September 11 writing in some column or other that weepy candlelight vigils were a cop-out: the issue wasn’t whether you were sad about the dead people but whether you wanted to do something about it. Three years on, that’s still the difference. We can all get upset about dead children, but unless you’re giving honest thought to what was responsible for the slaughter your tasteful elegies are no use. Nor are the hyper-rationalist theories about “asymmetrical warfare”.