You need governments maybe if you are going to have to supply your own bombs and war planes and high tech weapons.

But this nightmare didn't need anything more than a roomful of people willing to die and kill, a few knives, and a timetable. The bombs and planes and high tech were there for the taking. A bit like the way viruses work in our bodies.

I'm scared that the people in charge are going to decide what to do, not on the basis of what they can do that minimises the possibility of something like this happening again, but on the basis of finding some action that will look big enough and strong enough to match the enormity of what happened yesterday.