Time to read Christopher Hitchens on Mother Teresa again:

  In 2003, Pope John Paul II approved the beatification of
  Mother Teresa. At the time, Christopher Hitchens called
  Mother Teresa “a fanatic, a fundamentalist, and a fraud,”
  arguing that “even more will be poor and sick if her
  example is followed.” On Sept. 4, 2016, Pope Francis will
  canonize Mother Teresa. Hitchens’ original essay is
  republished below.

http://www.slate.com/articles/news_and_politics/fighting_wor...

Criticism of Mother Teresa: https://en.wikipedia.org/wiki/Criticism_of_Mother_Teresa