CNN Erin Burnett OutFront March 14, 2013 23:26:00
Outrage over the treatment of horses in slaughter houses led congress to ban the practice in 2006. since then, more than half a million american horses have been shipped to canadian and mexican slaughter houses where conditions can be even worse. the ban lapsed in 2011 clearing the way for usda inspections and the resumption of horse slaughter. >> they are livestock. and like any other livestock, there is a market for them. >> reporter: american horse meat is sold for human consumption overseas. >> historically, horses have been a meat product consumed by humans. certainly we've had a good for...