Victoria, a 2-year-old rat, sniffs for TNT, sticking her nose high in the air to indicate she's found some. She works her way down a 10-meter line with a handler on either end, and is able to detect the presence of TNT at a distance of approximately half a yard.
Michael Sullivan for NPR
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An estimated 4 to 6 million land mines are scattered throughout Cambodia, one of the world's worst-affected places. Rats possessing an exceptional sense of smell are being trained to detect the mines.
Black Lives Matter activists confronted Democratic candidates Martin O'Malley and Bernie Sanders at a Netroots Nation event earlier this month. O'Malley used the phrase "all lives matter" twice, which he later apologized for.
Ross D. Franklin/AP
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Eric Pennucci of Horizon Air Services, a Boston trucking firm, does not like the idea of 18-year-olds behind the wheel of tractor-trailers.
Chris Arnold/NPR
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Victoria, a 2-year-old rat, sniffs for TNT, sticking her nose high in the air to indicate she's found some. She works her way down a 10-meter line with a handler on either end, and is able to detect the presence of TNT at a distance of approximately half a yard.
Michael Sullivan for NPR
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A pedestrian crosses in front of a vehicle as part of a demonstration at Mcity on July 20, on the University of Michigan campus in Ann Arbor, Mich.
Paul Sancya/AP
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