I very much appreciate the opportunity of being able to come over to this meeting. I was a bit surprised when Don Thompson phoned me up and said, Come and talk about technology transfer to a meeting on quantitative NDT, but having sat attentively during the past day and a half here, I think I can now appreciate the need for urgent discussion and debate on the subject. Now, when you are scheduled to speak on the last day like this, you usually find that you have got to completely rewrite your talk the evening before to fit in with what\u27s been said before, and this is certainly the case in my situation. Having listened to some of those who talked last evening, I thought indeed that it might be as well to go right back to the beginning an...