It's easy to produce cheap goods when you don't have to pay your workers anything.
If you saw this morning's video, you might be asking yourself these questions:
1. What's the difference between this and the American system (except that the US has a higher percentage of its citizens in jail than China)?
2. If the fact of prison labor in China is a "state secret", what do you call the status of prison labor in the US? It's hardly common knowledge that prison labor in the US is a common practice.
Slavery: A 21st Century Evil - Prison slaves