Bhopal gas tragedy, 40 years on: Indian authorities finish moving toxic waste from site

Forty years and one month after a deadly gas leak at a pesticide plant killed thousands in Bhopal, India, authorities say the last remaining toxic waste has been removed from the site. Activists say not enough measures are being taken to protect the environment and the population. Four decades after one of the world's worst industrial disasters, new generations of people are still grappling with its fallout and are demanding justice. Our correspondents report.