Bill Gates is doing a Reddit AMA (Ask Me Anything) right now. For the uninitiated, this is when someone submits to be asked questions by Reddit users and answers as many as possible. I think he made some news with his response to the following question.
PSI Impact magazine, for which I am a contributor, asked its readers to nominate 10 great global health moments of the past year, then asked experts write profiles of each milestone. This list will lift your spirits.