"Vatican announces ceremony in step to raise Indiana nun to saint"
Now that's a mouthful.
So what really happened?
The Vatican announced a consistory (an allegedly consultorial, mostly-ceremonial gathering of Cardinals with the pope), where Benedict - who has already given the Church's acknowledgement of the authenticity of a miracle attributed to the intercession from heaven of Blessed Theodora Guerin - will likely approve a decree which will officially announce and set a date for her canonization.
Who is Mother Theodora Geurin?
Here's her biography from the webpage of the order in Indiana that she founded.
