Pope Francis on Monday gave his traditional "Urbi et Orbi" Christmas address, after urging the world's 1.3 billion Catholics not to ignore the plight of migrants "driven from their land" because of leaders willing to shed "innocent blood".
"So many other footsteps are hidden in the footsteps of Joseph and Mary," the Argentine pontiff, himself the grandson of Italian migrants, told worshippers at Christmas Eve mass in Saint Peter's Basilica.