This article is a good starting point for the East Palestine derailment. (Gift link, anyone can read.)

The info circulating on social media has been suboptimal, to say the least. Grab a cup of coffee and let's go over everything from vinyl chloride to electronic brake regulations.

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https://www.nytimes.com/article/ohio-train-derailment.html?unlocked_article_code=QAUX9RHyBl1b9fUvtoaowDVNQ7pnrrwPkArV4od2eHAxdIsqcvZ_du1RQBRo3vGRWv9KKJjCRbz1pdFxA4DMMuRrDEHjsdrLTbrI7YtViCmAVWuw9Y-u-AZEByM_eHO1TC74FTlPfvK4xeXnboaKa83KmBMqXil2Ks4M5Cx67bNIDv4AGkYqQTG8qKHa8upQx9JrAraht717TuVyEgAnpdpOuB3K21JY4MXh-70VgPkCUbp6CxfvYDkqeuMjrKhUkOPAS6Ew82vrs1tupq0pEkaNXmwSju_YyTFYWegxNvNVILvuLNy-ZNp06pY2YCcpqnNdcA&smid=url-share

Train Derailment in East Palestine, Ohio: What We Know

When a train derailed in the village of East Palestine on Feb. 3, it set off evacuation orders, a chemical scare and a federal investigation.

The New York Times
@maxkennerly "In 2017, regulations requiring braking system upgrades for trains carrying hazardous materials were rolled back." This is one result of what David Sirota at The Lever notes was successful lobbying by Norfolk Southern and others that meant a train carrying highly hazardous chemicals did not have to comply with "high-hazard" regulations. https://www.levernews.com/rail-companies-blocked-safety-rules-before-ohio-derailment/
Rail Companies Blocked Safety Rules Before Ohio Derailment

The train derailment came after Norfolk Southern helped convince government officials to repeal brake rules and lobbyists watered down safety regulations.

The Lever