Paris Archbishop Andre Vingt-Trois addresses the media during a news conference in Paris, Monday, Feb. 11, 2013. Pope Benedict XVI said Monday he lacks the strength to fulfill his duties and on Feb. 28 will become the first pontiff in 600 years to resign. The announcement sets the stage for a conclave in March to elect a new leader for the world's 1 billion Catholics. (AP Photo/Christophe Ena)