VATICAN CITY, VATICAN - MARCH 20:  Pope Francis greets faithful and workers of Terni's steel mill during an audience at the Paul VI Hall on March 20, 2014 in Vatican City, Vatican. During the audience the Holy Father said to Italian steel workers, 'Work is essential for human dignity, should be available to all.' The mill has been in operation since the late 1800s.  (Photo by Franco Origlia/Getty Images)