Sebastião Salgado discusses his work and its impact. He was interviewed by Matt Lyon, the assistant vice chancellor for Public Affairs. The video was produced by Bob Sanders, a Public Affairs science writer.

What is it like in refugee camps where death is so common?

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Your photographs depict squalor and misery, yet many of the children are smiling and seem happy? How can that be?

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You first trained to be an economist. What kind of training do you think a photojournalist needs?

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What do you hope people will take away with them after seeing your exhibit?

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