This would seem a simple question: is Mother Teresa a saint? If you took a vote, she’d likely win in a landslide. But as I learned firsthand in the course of researching my book, canonization is not a popularity contest. So while Pope John Paul II placed his friend from Calcutta on a saintly fast track, waiving the five-year waiting period before the cause could be considered, things have slowed considerably since her beatification.

This article explains why.