Interested in investing in marijuana? You won't want to miss CNN tonight.

"Weed 2: Cannabis Madness: Dr. Sanjay Gupta Reports," premiers at 10 pm ET. A follow up to his fascinating initial news feature, this time he looks at U.S. federal laws that consider marijuana a drug with no medicinal value and serious scientists who say they're wrong. It is the politics of pot - the politicians vs. the patients.

Stay tuned to our Twitter feed, @PoseidonAsset--we'll be tweeting along with the West Coast broadcast. See you tonight!