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Here’s how a former NASA engineer hopes to clean up the world’s dirtiest waterways

The SPEARS are already deployed in U.S. cities, along with countries around the world, including in Europe and the Pacific. They’ve also been at work for the past year in the Anacostia River in Washington, D.C., and on Tuesday, Albino and his team waded into the muddy water to retrieve them from the Benning Road hazardous site for the first time.