In recent decades, public interest in what a pope has to say has rarely gone beyond Catholic circles, but recent statements and interviews with Pope Francis have been the subject of great interest and comment outside of the Catholic world.
Why? I think this is because he truly is acting and speaking in a powerful, new way. Now to be clear, despite what you may have read in the press, Pope Francis is not changing Catholic doctrinal or moral teachings. But I do think that his broad popular appeal is because of the authenticity of his witness: he lives what he preaches.