With autism on the rise and no cause or cure in sight, more parents are breaking federal laws by giving their kids weed to treat the disorder.

Krishna follows a shipment of weed from California to New York to find out if the legalization of marijuana has ushered in a golden age of dope smuggling.

Marijuana legalization is putting more stoned drivers on the road; Krishna gets behind the wheel in Washington to find out how dangerous it is.

With gang violence and police brutality causing trauma across the country, Krishna heads to Compton to see if weed can help Americans suffering from urban PTSD.

As marijuana legalization spreads, more moms-to-be are using pot to treat their pregnancy-related symptoms, but at what legal risk to the mother, and health risk to the fetus?

Marijuana legalization promises a new American success story, but with skyrocketing rents and thousands of people homeless on the streets of Denver, whose green dream is this?

Krishna investigates the case of 19-year-old Camille Browne who entered a state of psychosis after smoking a blunt and murdered a local pastor, claiming God told her to do it.

Multinational corporations are moving to Colombia to set up a global weed supply chain. But will Colombia's pot farmers, long under the thumb of FARC rebels, join in or fight back?

Krishna explores how the stigma around medical weed can have deadly consequences, following the story of a Maine man who was kicked off of an organ transplant list for using pot.