My hon. Friend is absolutely right. I had not realised that he was a former chair of the APPG, so I thank him for his work on this issue. On his central point, the lessons absolutely have to be learned. As I said earlier, anyone who has watched this just as a bystander, not having had their life turned upside down, can still feel their blood boiling, but what it was like to be involved in this must have been unimaginable. I hope this will be a salutary lesson for the idea that a computer can never be programmed in an incorrect way, or have a loophole or a problem, not just with regard to the Post Office or even Government procurement but for every walk of life and everything that computers are now involved with.