Hitches made it his personal mission to defile Mother Teresa after he was not allowed access to information from those writing her biography.
I'm pretty sure he went and visited her 'hospices' first hand and was horrified by what he saw. The fact is, the woman is a horribly overrated person. She raised millions upon millions (including from dictators) and donated it to the Vatican rather than do anything to improve the lives of the people who were dying and receiving negligent medical care under her hand. She deserved to be exposed and defiled.
ETA: There was also the time she went to Enver Hoxha's grave and gave a nice little homily about him being a great humanitarian. No, really.
This post was edited on 12/23 at 11:25 am