Andrew Weber: One thing I've learned during my many years of working with scientists in the former Soviet Union is that a lot depends on individuals. Some timid individuals are perfectly willing to stick with the lie, and look you right in the eye and just give you the party line. But then there are a few, perhaps a rather rare few, individuals who really have guts, the guts to tell the truth. And Gennadiy Lepeshkin, just a fireplug of a man with a big heart and a lot of energy, he was one of those gutsy individuals who was willing to stand up and take a risk and tell the truth. And it's very unusual, of course, because the Soviet system had really done its best to prevent that personal initiative and courage.