How trafficking tigers became an 'industrial enterprise'

It’s estimated that there are fewer than 4,000 tigers remaining in the wild today, compared to roughly 100,000 in the early 1900s. More tigers now live in captivity than in the wild, and many of those live in so-called “tiger farms,” where they are bred, raised and slaughtered for their body parts. William Brangham talks to The Washington Post’s Terrence McCoy, who visited such farms in Laos.