I agree with my right hon. Friend, and the important point about the Bill is that it recognises the difference between a crime and an error. We all know that crimes should be prosecuted, and we all know that the difference between a crime and an error is a difference of understanding and, on some occasions, circumstance. It is not necessarily a crime for a missile, sadly, to go astray and kill civilians. It can be an error; it may be a terrible, regrettable error; it may be an error that we should learn from a thousand times. But it cannot always be a crime, otherwise the invasion of Normandy could never have happened, because if it was always a crime for civilians to die in combat, the troops could not have prepared that battlefield to land on those beaches.
If that was a crime, it would always be a crime to use force in situations where we cannot be absolutely certain of the outcome of that force. Of course, that is never possible, because the reality is that if we put such blocks on any use of force, what we are saying is that force can never be used.