Two days after being released from the hospital, the Pope greeted thousands in St. Peter's Square this morning for his traditional prayer service. WATCH FULL EPISODES OF WORLD NEWS TONIGHT: abc.com/shows/world-news-tonight WATCH WORLD NEWS TONIGHT ON HULU: bit.ly/3iQLwPp #PopeFrancis #Hospital #StPetersSquare #PrayerService #WorldNewsTonight