Once in Thailand Dr. Ngor wrote a letter to the former Cambodian ambassador in Thailand for assistance. The letter eventually found its way to the American Embassy and Dr. Ngor was on a plane to America in September of 1980.
在泰國難民營，吳漢寫信給前高棉駐泰國大使求援，信輾轉送到美國駐泰大使處，經過他的協助，吳漢在一九八○年九月二日離開難民營，前往美國。