As China opens up, people trafficking is emerging as a growing threat, but officials are reluctant to admit the scale of the problem.
In Yunnan province, young women are being sold as wives or to brothels and sweat shops in Thailand.
Life in the small Yunnan villages, close to the border with Burma, is very different from other parts of China where the economy is booming. This is a sleepy world of lush rice paddies, hillsides bursting with rubber trees and dotted with Buddhist temples.
Many villages here contain ethnic minorities whose language and culture has more in common with northern Thailand than with the Han Chinese. [Full Text]