[econjack]

True, Smithfield Farms was sold to China, but the hogs are not being shipped back to China. See:

http://www.snopes.com/food/warnings/smithfield.asp

[HomerBohn]

Virginia-based Smithfield Foods is the world's largest hog farmer and pork processor, vending packaged meat products in the U.S. under a variety of brand names such as Smithfield, Eckrich, Farmland, Armour, John Morrell, Kretschmar, Curly's, Carando, Cook's, Margherita, Gwaltney, and Healthy Ones.

This is enough for me!:

In September 2013 Smithfield Foods was acquired by China's biggest meat processor, Shuanghui International Holdings, in the largest acquisition ever of a U.S. company by a Chinese one — a deal that has raised concerns in America about a Chinese food company's controlling a major U.S. meat supplier. Read more at http://www.snopes.com/food/warnings/smithfield.asp#Pgl4wT6ygl3EZVRM.99