It is hard to ignore the past in a town like Amherst in northern Nova Scotia. The setting fir the Leon Trotsky's internment in one of Canada's largest World War One prisoner-of-war camps and for Henry George Ketchum's unusual plans to build a ship railway, Amherst has witnessed the rise-and sometimes fall- of personal fortunes and revolutionary dreams. Once the battleground for the historic struggle between the English and the French, it has been...