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Barrel with Nuclear Pollution. Biohazard, Radioactive, Toxic Waste Stock Vector - Illustration of atom, icon: 251646876
![Keith Hornberger on Twitter: "Keeping it light on Friday, this memory shook loose another one about what happened when the EPA paid a visit to Columbia's chemistry department in the late 90s Keith Hornberger on Twitter: "Keeping it light on Friday, this memory shook loose another one about what happened when the EPA paid a visit to Columbia's chemistry department in the late 90s](https://pbs.twimg.com/tweet_video_thumb/FflqmZ7XoAIhxRG.jpg)
Keith Hornberger on Twitter: "Keeping it light on Friday, this memory shook loose another one about what happened when the EPA paid a visit to Columbia's chemistry department in the late 90s
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