Venki Ramakrishnan: There were people there who are real experts in crystallography, and this is a bit like — if you’ve ever been on a long expedition in a vehicle — you’d want to take along people who really know about auto mechanics, in case your car breaks down in the middle of the Sahara Desert or something like that, right?  So if we’re pushing the limits of what crystallography could do, you want people around who really understand the technique and can help you if there are technical problems.  As it turned out, I didn’t really end up needing them, but it’s nice to know they were there if I did need them.