Didn't Mother Theresa worship there with the Hindu's or participated in a Hindu service in India? I thought I read that she did.
Mother Teresa may not have been entirely orthodox, as the following article explains:
http://www.traditioninaction.org/HotTopics/a013htMotherTeresa.htm
but then we should remember that "charity covers a multitude of sins".
In addition to the Hindus, we know that the Dalai Lama was also hosted at Fatima:
http://www.traditioninaction.org/HotTopics/b005ht.htm
After the horrors of Assisi 1 and 2, none of this Fatima news should come as any surprise.