Straight talking Pope Francis could stir up USA

Pope Francis will visit his Roman Catholic flock in the United States this month with the faithful expected to welcome the Pontiff with open warms. However the leader of the world's Catholics is likely to express views on issues like dealing with migrants and climate change that will ruffle feathers. The veteran economic commentator Irwin Stelzer tells the BBC's Jon Bithrey how American critics are ready for Pope Francis.