ResPres said: http://marketplace.publicradio.org/…y_slavery/

"a case in Tulsa, where there was a guy who owned a welding company, who began experimenting with temp workers he imported from India. And decided that it would be a good idea to keep them on factory premises. So very quickly, things escalated into a situation where he was hiring an armed guard to sit outside of the factory, just to kind of remind them that it might not be such a great idea to leave."