Bhopal Gas tragedy: How it happened

It happened in Bhopal, presented by Al Jazeera, examines the devastating events of Bhopal, India in 1984, when a cloud of poisonous gas released over the city killed thousands in the world's worst industrial disaster. Al Jazeera talks to survivors about the incident and its terrible legacy for those who live there.Thirty years later, the tragedy of that industrial disaster continues to linger as the victims themselves become the unmistakable scars of the tragedy. It is not just the old but the young also bear the scourge of the toxic leak even today.