Pope Francis has celebrated Christmas Eve Mass in a packed St Peter's Basilica, rounding out a year marked by his pleas for the world to better protect innocents caught up in wars, migrations and abject poverty. <br/><br/>The Pope demanded Europe in particular do more to welcome refugees, saying Jesus himself was a migrant who deserved more than being born in a manger. He also has denounced the wasteful ways of the wealthy when children and the poor die of hunger every day.