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Investigating the new wave of pollutants entering our waterways and drinking water...

What exactly went wrong in Flint—and what does it mean for the rest of the country?

Water Lettuce (Pistia stratiotes) is an invasive exotic aquatic plant that has been in Florida for hundreds of years – perhaps merely as a result of being snagged on or carried in bilge water of early sailing ships traveling between the Amazon River in South America and Florida. Once here – and in other countries around the world, it quickly reproduced and was spread down rivers and streams and even into isolated lakes by boats and individuals who admired its beauty. To this day it has negative impacts on native wildlife, shading swamp waters, thus cooling them and reducing sunlight needed by native plant species, often making it difficult for herons, egrets, Anhingas, and other aquatic animals to find food. If you boat in waters with water lettuce, always check your boat and trailer for plants caught on them. Don’t introduce this plant to waters where it isn’t currently found. In spite of its name.

Water Lettuce (Pistia stratiotes) is an invasive exotic aquatic plant that has been in Florida for hundreds of years – perhaps merely as a result of being snagged on or carried in bilge water of early sailing ships traveling between the Amazon River in South America and Florida. Once here – and in other countries around the world, it quickly reproduced and was spread down rivers and streams and even into isolated lakes by boats and individuals who admired its beauty. To this day it has negative impacts on native wildlife, shading swamp waters, thus cooling them and reducing sunlight needed by native plant species, often making it difficult for herons, egrets, Anhingas, and other aquatic animals to find food. If you boat in waters with water lettuce, always check your boat and trailer for plants caught on them. Don’t introduce this plant to waters where it isn’t currently found. In spite of its name.

The U.S. Navy spends billions of dollars each year building and repairing ships. But how safe are the shipyards where that work is done? Reporter Jennifer…

What if there were a way to hack into your brain and make your life better? Neurosurgeon Andres Lozano is doing just that. He told TED Radio Hour host Guy Raz how.

What happens when we connect with people whose view of the world is very different from our own? In this month's Radio Replay, we bring you stories about the relationship between diversity, conflict, and creativity. This episode features reporting from our July 2018 podcast, "The Edge Effect," and from one of our 2016 shows, "Tribes and Traitors."

Radio Free Europe/Radio Liberty, a government-backed overseas broadcaster, sued the Trump administration in an attempt to get it to release funds appropriated by Congress.