MEXICO'S DISAPPEARING MEZCAL WORMS

Across Mexico, and in many world capitals, people are increasingly raising a glass of mezcal, a traditional Mexican liquor. Connoisseurs of the strong drink say it tastes best when served the traditional way-- with a worm in it. But the worm population is being pushed into decline, due to the drink's growing popularity. Franc Contreras reports from Oaxaca state in southern Mexico.