Photos: Dateline explores the streets of India

Some of the most revealing moments during The Hansen Files overseas report on drug trials is what happened in between interviews and planned shoots. When NBC cameraman David Lom was scouting the neighborhood streets of Delhi one night, he took black and white images of the rustic pharmacies and traditional doctors that many Indians rely on to survive. In the slums of Ahmedabad, NBC Producer Tim Sandler captured the faces and everyday lives of destitute people living on the fringes of society.