Q Good afternoon, Professor Keevil. When I came to this debate a few weeks ago and started reading about it, I found the apparently contradictory claims about the safety of the various systems confusing. I was struck by your evidence, and I wondered if you could take us through it. You say at one point that it is difficult to make comparisons, but I must say that in most of our debates people make comparisons with huge amounts of confidence, depending on which side of the debate they are on. You also say that the USA reports that 14.7% of its population contracts a food-borne illness annually, while in the UK the figure is 1.5%. Could you amplify that?