UN's Ban: Climate change 'defining issue of our time'
United Nations Secretary-General Ban Ki-moon marches with hundreds of thousands of people in New York for the international day of action on climate change. Rough Cut (no reporter narration).
Pope Francis is greeted by cheering crowds in predominantly Muslim Albania on his first official European visit, before launching his strongest criticism of Islamist militants to date. Vanessa Johnston reports.
The video, shot in black and white, was filmed in Los Angeles and directed by Mert & Marcus. It includes a stunning tour de force performance by the Material Girl and her team of dancers and breathtaking visual effects.