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.
All the shows, films, stars and fans at this year's Comic-Con convention! Feat Robert Downey Jr., Mila Kunis, Kristen Stewart, Joseph Gordon-Levitt, Colin Farrell, plus the cast of 'The Hobbit' and more!