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“There is no statistical evidence linking the nationality of a commercial driver to safety outcomes in the U.S.”

How about English proficiency?

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drivers “know what the road signs mean, but they may get nervous when questioned by officials at a stop”
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So, you're saying you prefer to have lower standards on English proficiency for drivers, as long as it means lower priced freight.

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"There is no statistical evidence linking the nationality of a commercial driver to safety outcomes in the U.S."

So no, I don’t want higher freight prices unless there’s demonstrated safety benefit proportional to removing 10,700 drivers.

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“do not imply a causal relationship”

doesn’t establish language as the cause

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burden of proof is on the null hypothesis now, imo.

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Correlation → not causation → burden stays on the causal claim.