Five Best Ideas of the Day
Published each weekday, at noon.
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This minor rule change could reduce concussions in football by nearly 70 percent.
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With some genetic editing, this wild fruit could be the world’s next strawberry.
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America’s allies need to step up and protect the global order.
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Your home wireless router might be putting your data at risk.
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The best way to keep effective teachers — and lose ineffective ones — is with strong school principals.