Prevention and preparation, but the reason i wrote the book was to show you why it's important and exactly how to do it at an individual level, societal level and hopefully a world level. >> and one of the things that you hit on in your book is how some countries outside of the u.s. did so much better. despite not having a vaccine earlier. what is behind that? what did you find? >> well, this is really interesting, pamela, because, you know, going into the pandemic, the united states was ranked as the number one best prepared country in the world for a pandemic. and we all know it didn't turn ...