A survivor of the Bhopal gas disaster in India holds a poster during a demonstration against Dow Chemical Company in Bhopal. A survivor of the Bhopal gas disaster in India holds a poster during a demonstration against Dow Chemical Company, in the central Indian city of Bhopal January 6, 2004. The Bhopal Gas disaster on December 3, 1984, in which nearly 25 tonnes of highly toxic methyl isocyanate escaped from a storage vat, killed at least 15,000 men, women and children and ruined the lives of half a million more. REUTERS/Raj Patidar