BROADCAST DATE : Nov 25, 2016

Superweed: What’s really in today’s marijuana?

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As Canada prepares to legalize marijuana, we are taking a closer look at today's weed. We test what's being sold right now, and find out that what's missing should alarm you. And we go to Colorado, where weed is legal, and hook up volunteers to EEG machines to find out what happens to your brain on drugs.