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Features

A Need for New Warheads?

The U.S. government's proposal to build the first new nuclear warhead in two decades raises a host of questions

By David Biello

Brilliant Displays

A new technology that mimics the way nature gives bright color to butterfly wings can make cell phone displays clearly legible, even in the sun's glare

By M. Mitchell Waldrop

The Science of Doing Good

Information technology, satellite imaging and research carried out in disaster-relief areas have begun to transform humanitarian aid into a more efficient and less haphazard endeavor

By Sheri Fink

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