Arrangements had been made to include the testimony of several expatriated Vietnamese students residing in Canada , but they were denied visas to the United States by the Canadian government .
Several civilian experts who had been to Vietnam were also to speak during this event .
Arrangements had been made to include the testimony of several expatriated Vietnam students residing in Canada , but they were denied visas to the United States by the Canadian government .
Several civilian experts who had been to Vietnam were also to speak during this event .