Wing Warping Controls Aircraft at High Speeds

I was reading that article earlier today but didn't get exactly what "wing warping" was. I thought the US military already had some planes where the wings would go from being a traditional 'straight line' type wing to a swept back wing in flight so that it looks like a delta triangle?
 
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The project reflects both a return to aviation's beginnings, and a gateway to the future--a future where aircraft will sense their environment, morph, and adapt their shape to the existing flight conditions. These aircraft will take advantage of years of evolutionary lessons exhibited in bird-like flight.
NASA - NASA Dryden Research Update - Active Aeroelastic Wing
 
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