Friday’s school shooting in Connecticut could affect some Khmer Rouge survivors living in the United States, according to Bunrath Math, a clinical social worker in Philadelphia. More than 200,000 Cambodians resettled in the US in the 1970s and 1980s. Many of them were survivors of the Khmer Rouge. And many lost family members under the regime. Some of have spent years trying to get over the trauma. Some never have. VOA Khmer's Poch Reasey reports.