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Marijuana

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One year ago Thursday morning, recreational marijuana became legal in Colorado. But now that's leading to a problem -- people are overdosing on edible pot that looks like a regular snack.

One year ago Thursday morning, recreational marijuana became legal in Colorado. But now that's leading to a problem -- people are overdosing on edible pot that looks like a regular snack. Because of the dangers, some in the state are trying to take some of the risk out of a rocky mountain high. John Blackstone reports.

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