North America’s Largest City Moves to Legalize Pot

Though deprived of sunlight and breathing the smog-ridden air of Mexico’s mountain capital, the marijuana plants, from a strain known as purple kush, reach 0.9 m in a brick home at a middle-class suburb. They are alimented with electric lights and kept behind closed curtains by the owner, who says he grows them to smoke himself. If police found them, he could be nailed for drug production and face a hefty prison sentence under laws designed to tackle the country’s ultraviolent cartels.