A place to go: nearly a billion people, more than half of them in India, defecate outdoors every day. The result: millions of death and disease-stunted lives. The problem isn't just a lack of toilets--it's a lack of toilets that people want to use

At 65, Moolchand, bandy-legged and white-haired, has no problem rising for his predawn hunts. In fact he revels in them. 'I hide along the lane with my flashlight,' he says [...]