In the early hours of December 3, 1984, a dense cloud of poisonous gas leaked from a pesticide plant and, borne on a soft, northern wind, enveloped Bhopal, a city in central India. More than four decades later, the Bhopal gas tragedy remains the deadliest industrial disaster in human history, with researchers estimating that half a million people are still suffering long-term health consequences. The morning after the leak, Raghu Rai, a photojournalist from Delhi, arrived in the city to document the crushing aftermath. See his photos that both capture the disaster and chronicle modern India through its formative decades: www.newyorker.com/culture/photo-booth/how-...