lds church history

This is a double pronged discussion, because, of course, I'm looking for an explanation from someone LDS. But regarding the second prong dealing with my humility, I don't mind anyone responding. So, I am troubled by the notion of prophets and general authorities being excused for now disavowed...

Since I've had a lot of time to wait around in airports lately, I've cracked open a book I bought a few years ago that I've been meaning to read and just never had the time. It's called The Mormon Murders by Steven Naifeh & Gregory White Smith (published by Weidenfeld & Nicolson, 1988), and its...