A South Florida group is setting out to promote the use of medical marijuana. Footage: CBS Miami

Activists promoting the use of medicinal marijuana for seniors.

Robert Platshorn started the Silver Tour in Florida to rally senior citizens for the legalization of medical cannabis in the state. Source: money.cnn.com

If one local state representative gets his way, the Florida constitution may be amended to legalize medical marijuana. Jeff Clemens of Lake Worth has submitted a bill that would allow voters to decide the controversial issue. Ben Becker reports.