When Modeling the Mississippi River, a Supercomputer Won't Do

The Mississippi River—it’s a big deal, OK? The combined ports of South Louisiana and New ­Orleans move more cargo, ton for ton, than any other US port. So figuring out the Mississippi’s hydrodynamics—the way its water, silt, and sand ebb and flow—matters. Matters so much, in fact, that Louisiana has …

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2018 Worldwide Threats Briefing: 5 Takeaways, From Russia to China

On Tuesday, the heads of the NSA, CIA, FBI, and ODNI—America’s intelligence community brain trust—gathered before members of the Senate Select Committee on Intelligence to discuss various worldwide threats. And while most of the topics were familiar, the hearing also included a few revelatory moments, insights into fears that were …

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