The manicured lawns and beautiful brick homes that line the streets of Spring Valley look like those in most affluent District neighborhoods.
But the area looked much different during World War I, when the Army was using it as a testing ground for chemical weapons.On Sunday, visitors on a tour of the neighborhood heard how, 90 years after scientists ended their experiments, the remnants of toxic munitions remain.
Hazardous Waste and History Mix On D.C. Tour
An enormous marine heatwave off the US west coast is ringing alarm bells among ocean and...
Authorities in Orange county, California have ordered the evacuation of 40,000 people over concerns about a...
More than 17,000 people were under evacuation orders in southern California on Tuesday as a wildfire...
