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      How High is too High to Drive? | CBC.ca Loaded

      How High is too High to Drive?

      9 years ago
      Duration 14:00

      How High is too High to Drive?

      • 9 years ago
      • News
      • Duration 14:00

      As Canada begins work on legalizing marijuana, one of the toughest public safety challenges will be deciding when a marijuana smoker is too impaired to drive.

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