Ship breaking is one of the most hazardous jobs in the world because most ships are used to carry radioactive materials, toxic wastes, extremely poisonous chemicals and oil. Not only does it directly affect the health of the workers, it is an environmental time bomb - as workers strip the ships marooned on the sea shore, there is severe contamination of the sea bed, eventually seeping into the marine food chain. We visit the world's biggest ship breaking yard, Alang.