TORONTO — The former Canadian ambassador to Iran who protected Americans at great personal risk during the 1979 Iran hostage crisis said Monday it was good to hear Ben Affleck finally thank Canada after Affleck's film "Argo" won the Oscar for best picture."Argo" came under criticism from some Canadians, including former ambassador Ken Taylor, who said he felt slighted by the movie because it makes Canada look like a meek observer to CIA heroics. Taylor says it minimizes Canada's role in the Americans' rescue.