CNN Weed 2 Cannabis Madness Dr. Sanjay Gupta April 18, 2015 23:33:00
We're driving into the countryside just outside of london chblt we're on our way to visit gw pharmaceuticals, a company that makes medicines from the actual marijuana plant. now, although this is done with the express permission of the uk government, we did have to sign confidentiality agreements and cannot disclose exactly where we're going to be located. you see, marijuana is illegal in just about every part of this country except for the secret labs that we're about to enter. >> wow! this is pretty spectacular. are you used to the smell? >> i'm not particularly partial to the smell. >> if y...