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CNN's Rene Marsh reports on a new proposal that could decriminalize marijuana use in Washington, D.C.
Dr. Sanjay Gupta reacts to the Justice Department's announcement that it won't block laws that have legalized marijuana in states like Washington and Colorado.
Former Mexican President Vicente Fox and ex-Microsoft manager Jamen Shively discuss legalizing and branding marijuana.
RELATED STORY: Former Mexican president pushing for pot legalization
The Obama Administration weighs the next steps in Colorado and Washington, where Marijuana will be legal.
CNN's Ed Lavandera reports on Colorado's legalization of marijuana for recreational use.
Reps. Barney Frank and Ron Paul launch an effort to end federal enforcement of marijuana laws. CNN's Brian Todd reports.