So the UK Counter-Terrorism Chief just quit after a spectacular blunder. He accidentally held a confidential document in full view of photographers, causing police to need to raid a suspected terror cell a day early.
Rather than get on our high horses about the fact that he made the blunder, I think we should think about the wider implications of his resignation. I bet there's not an exec anywhere who hasn't seen this story and thought twice about times they've left documents lying around, or worked on confidential presentations on a crowded airplane.
Despite the tactical impact of the blunder, wake-up calls like this are always welcome.