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Flooding and riverbed erosion has caused 2.4 million gallons of crude oil and other hazardous liquids to spill from pipelines into U.S. waterways over the last 20 years, but the U.S. won't increase protections.
On Sunday, a train derailment killed four people and injured dozens more. Amid reports that the conductor may have fallen asleep at the wheel, it's just the latest reminder that sleep is a critical public health concern.