Tight up against the Chinese border in northern Vietnam is a mountainous, tribal area from which, almost daily, Hmong girls are tricked, drugged, kidnapped and smuggled deep inside China. There, they’re sold into coercive marriages and domestic, agricultural or sexual slavery. Disoriented, most lack the language, means and skills to escape. Most disappear forever. Long-time OZ member Sue Schein will describe how she worked with partners to design and launch workshops aimed at interrupting this practice, by teaching girls how to…