The emergence of hunter-killer and surveillance drones as revolutionary new weapons in the wars in Iraq and Afghanistan, and in counterterrorism operations in places such as Pakistan and Yemen, has spawned a multibillion-dollar industry.
Matt Keennon, program director for AeroVironment, displays the Nano Air Vehicle, also known as the Nano Hummingbird, in New York. AeroVironment is developing the Nano Hummingbird under a research contract sponsored by the Defense Advanced Research Projects Agency (DARPA), an agency of the Defense Department. The aircraft uses biological mimicry on a small scale and is aimed at someday providing reconnaissance and surveillance capabilities in urban environments.
On May 31, 1889, the South Fork dam that held Lake Conemaugh failed, and 20 million tons of water descended upon Johnstown, Pa. The flood claimed the lives of 2,209 people and spurred...
More than 400,000 Syrians have crossed into Turkey seeking refuge from the conflict at home. Finding its resources stretched, Turkey is urgently appealing for international aid and...
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