As Marijuana Use Grows, Effect on Road Safety Remains a Blind Spot

Scientists want to create breathalyzers that show how recently a driver used marijuana. Researchers also are studying how cannabis impairs motor skills and reflexes for habitual and occasional users.

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Great Lakes Storm Dumps 2 Feet of Snow on Northeast and Midwest, With More to Come

The lake-effect storm disrupted holiday plans and travel across the region. National Guard troops were dispatched in New York and Pennsylvania.

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