Think of Manchester's warehouses or Manhattan's meat-packing district, now converted into clubs and trendy lofts.

ECONOMIST: Business in America

Since an immigration raid in May, the nation's largest kosher meat-packing plant has been scrambling to fill hundreds of jobs.

NPR: At Iowa Meatpacking Plant, New Workers Complain

Starting from quite humble roots in real estate and later meat-packing, he is now one of the richest men in Mexico.

BBC: Working Lives Mexico

But just as they did, meat-packing companies started raising their own pigs.

NPR: Family Farms Lose Out on Upswing of Pork Exports

BSE-infected cows through beef-eating and meat-packing, has been suggested.

ECONOMIST: Disease