Right now the BBC is saying 33 dead from the trains, plus an unknown number from the buses. And the grim thing is, I found myself thinking that means we got off relatively lightly, in times like these.

It's a shock, but not a surprise really. And we've been here before.

My son works up in London, and commutes through Liverpool Street, but he's OK, and has a lift home. Earlier this week he went to see War of the Worlds, which he found quite alarming - still, at least the people doing this don't have Martian technology.