I think the issue of what's called PH farming is a big issue. It's a very challenging issue, because if you have a food crop that can also produce industrial products or pharmaceutical products, it will be virtually impossible to actually properly segregate unless you do it in a totally hermetic way, and for economic reasons you cannot do that; you're not going to seal those crops.
So that's a huge issue. At least one thing that has been done so far is that we haven't gone fast on this issue, and rightly so, because if a food chain is contaminated, it's a huge issue.
To go back to my Royal Society report, I think there were some interesting recommendations that this committee should revisit. I think they were there at the time, and unfortunately this issue is still there. I thank you for raising this, because I think indeed it is a big threat, and the U.S. is not as cautious as we are here.