reform-minded general secretary of the Soviet Communist Party, the most powerful position in Russia, the Soviet satellites were moving toward independence. I was in Prague the night the Velvet Revolution separated Czechoslovakia from Moscow's rule and spent time in Poland with the charismatic Lech Walesa, who led Solidarity. Nineteen eighty-nine was that kind of year. Earlier, in June, I finished a commencement address at Tulane University School of Medicine on a Saturday morning and got a call from our news desk: Chinese troops had moved on young urban protesters who had taken over Tiananmen Square in the heart of the Chinese capital, demanding more political and personal freedom after a state visit from Gorbachev, who was reforming