One of the two scientists responsible for the Ames process (Frank Spedding) was born in Canada and left Canada as a boy. I wonder if the Canadians can get him to come back (He got a full professorship at Iowa State in 1941) if they thrown enough money at him...As shown by the cost cutting that could have made the Windscale disaster, far far worse, had not a few sane people objected and greenlit the filters for that dual air-cooled graphite reactor setup.
Without US involvement, the cheap refining of Uranium Ore to pure metal would have been far more expensive, and each reactor would have needed almost 200 tons of uranium metal.
Prewar price was $1000/lbs.
With the US mass production enabled by ISU 'Ames process', it was around $1/lbs