 When I first began traveling the world in the early 1980s, especially in sub-Saharan Africa, there was so much blindness everywhere that really left a deep impression on me, from river blindness, from trachoma, from cataracts, etc. And now there is so much less blindness, more tumbled extraordinarily because of the work of Jimmy Carter and a thousand other people. Likewise, I think maybe the worst thing that could happen to somebody is to lose a child. And