On this installment of ST Medical Monday, an interesting if rather alarming conversation with the award-winning science reporter and author Gary Taubes, whose books include "Why We Get Fat" and "Good Calories, Bad Calories." He joins us to talk about his newest book, which is just out in paperback: "The Case Against Sugar." As was noted of this book by a critic at The Seattle Times: "Taubes sifts through centuries' worth of data.... Practically everything one wants to know about sugar -- its