PIEN HUANG, HOST: Cambodian authorities are shutting down cyber scam compounds after months of international pressure. Officials say some 200,000 workers from 35 countries have been freed so far. The U.N. says many were trafficked. Now, thousands of workers are stranded in Cambodia with little money and no way home. For NPR, here's investigative reporter Shibani Mahtani. SHIBANI MAHTANI: On a recent evening walk through chaotic Phnom Penh, I saw groups of former scam workers everywhere.