officers from the philadelphia police department signaling very shortly the arrival of pope francis. you are just joining us. we are here with christiane amanpour and gallagher, a vatican correspondent. this is a mass for the clergy. this is a mass. we have seen him meet with the bishops in washington, d.c. we saw also in new york and st. patrick s large number of clergy present at st. patrick s cathedral. this is important really wherever he goes around the world to mobilize the field workers, if you will. it really is. clergy and religious women. he is in particular speaking to religious women at each of these events. it is important, because if he is going to have his mission accomplished, here we are. there he is. let s listen in as the crowds crete the pontiffs.