First of all, fortunately there is no disease that has ever been seen before that works like it did in 28 Days Later, but often that is people's image of how these things work.
Certainly we think that the amendments add to our repertoire, they don't take away from that. I think there are some opportunities. We can never guarantee against everything.
We have a situation with the TB case where he just didn't let people know and he didn't have symptoms, so no Quarantine Act would catch that.
So we'll work on all the various aspects of the system to continue to improve that. But nature is constantly inventive, and that's why we need to be flexible, responsive, and be thinking not just in terms of disease X, like H5N1, but of any potential disease and how we could respond, and to anticipate not simply what the best science teaches us but what we would do to mitigate if we were wrong, by any chance.