In Mexico, ‘green gold’ brings both riches and violence

Small-scale avocado growers armed with AR-15 rifles take turns manning a vigilante checkpoint to guard against thieves and drug cartel extortionists in this town Michoacan state, the heartland of world production of the fruit locals call “green gold.”

The region’s avocado boom, fueled by soaring U.S. consumption, has raised parts of western Mexico out of poverty in just 10 years. But the scent of money has drawn gangs and hyper-violent cartels that have hung bodies from bridges and cowed police forces, and the rising violence is threatening the newfound prosperity. A recent U.S. warning . . .