I think, on Dr. Douville-Fradet's proposal, with very specified mechanisms of transportation such as a train, one wouldn't necessarily need to stop it at the border, but then if you had concerns that someone on board that conveyance was ill and needed medical attention, if you hadn't put them off to give them medical attention before they got to the border, then rather than putting them off at the border where there aren't diagnostic or care facilities, it would actually make more sense to arrange for them to be met by an ambulance and transported to a hospital at their closest point of destination.
On May 30th, 2007. See this statement in context.