The other reason why—and I had to look at the use of lasers, I guess—is not all high-power laser equipment is for the purposes that the previous speaker spoke about. Of course we would all speak against the use of those lasers if they cause harm, but we also have lasers in this country for finding faults on fibre optic cables. I mean, they obviously provide a really good use in large-scale sound and light shows, construction, surveying, measuring. So we do have them currently in our society, but the point I believe Mr Walker is saying is in relation—and he says it in his bill—in terms of aircraft crew to perform their duties.