Why it’s wrong to call terrorists cowardly:

The danger of using the word “cowardly” in so obviously mistaken a way is that it gives the impression that, if the attack were not cowardly, if to the contrary it were brave, it would not be as bad and indeed might even be worthy of admiration. And since to blow yourself up in a truck is conspicuously brave by comparison with what most of us would be prepared to do, it follows that these denunciations perversely invite us to consider terrorists acts as in some way admirable—which, I need hardly add, they are not.