FRESNO (AP) — Last fall, narcotics agents confiscated thousands of marijuana plants, many 10 feet tall, from a 140-acre farm just on the edge of Fresno — one of the biggest pot busts in the county's history. The pot grew hidden among rows of rotting peppers, tomatoes and bitter melons, tended by a dozen immigrant farming families. Deputies detained 50 people, all of whom were lowland Laotians, a refugee population from southeast Asia that has made its home in California's Central Valley over the past three decades.