ATLANTA, Georgia (The Adobo Chronicles) – CNN’s chief medical correspondent Sanjay Gupta puts medical marijuana under the microscope again with “Weed 3: The Marijuana Revolution” at 9 p.m. ET, Sunday on CNN.

The CNN Original Series  will explore the business of legal, recreational cannabis in Breckenridge, Colorado.

Among Gupta’s guests will be no less than President Obama who, sources say, will  announce his full support for  a nationwide legalization of weed for medical and recreational purposes.

Before the segment with the president ends, the sources say that both Gupta and Obama will smoke marijuana  — live on air — to prove that weed is no more harmful than legal alcohol.

In recent years, Gupta was rumored to be one of Obama’s choices for Surgeon General but that the CNN anchor chose to stay in television.

The entire nation will be tuning in to CNN this Sunday. It may be the show that will break all Nielsen rating records.