ARLINGTON, Va. (AP) — At a time when the U.S. Catholic Church is grappling with a severe shortage of priests, the Diocese of Arlington, Virginia, recently ordained 12 new priests — its second-largest class ever — in a joyful Mass at its cathedral. Ahead of the ceremony, The Associated Press spent time with the men, who explained what drove them to choose a life of celibacy, obedience and devotion. Here are four of their stories.