Colorado's first-in-the-nation experiment with legalised marijuana has infused the drug into almost every corner of life. Jack Healy of The New York Times reports.

Serenity Christensen, 14, is too young to set foot in one of Colorado's many marijuana shops, but she was able to spot a business opportunity in legal weed. She is a Girl Scout, and this year, she and her mother decided to sell their cookies outside a dispensary. "Good business," Serenity said.

But on the other side of Denver, legalisation has turned another high school student, David Perez, against the warehouse like marijuana cultivations now clustered


The 'drug talk,' rewritten


"Nothing is completely safe"

Planting and busts

A green party