反对人口贩运 华盛顿街头举办“艺术为自由”展(英文视频)

It seems unreal in this 21st century, but an astonishing number of people are bought and sold around the world. The U.S. Department of State estimates between 600,000 and 800,000 people are trafficked across international borders each year. Millions more are enslaved within national borders.