Exactly what happened on February 3 in East Palestine, Ohio? What do we know about the toxic gasses that were vented from a derailed train? What kind of effect could they have on nearby residents, and could their impact reach as far as Canada?

It's been a decade since Canada's Lac-Mégantic train disaster, and somehow the push for tighter regulations for trains carrying hazardous cargo weren't enough to prevent this catastrophe. It may be years until we know everything about the environmental and health impacts, but what do we need to know, like, right now?

GUEST: Rebecca Burns, reporter, The Lever

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