1945- 1945-1955 airqualitymanagement antidumpingduties canada casestudies costs diplomacy downsizingoforganizations energyindustries estimates foreignrelations general governmentpolicy highlyenricheduranium history industria industrialrelations international internationalrelations licenses management mathematicalmodels mineralindustries nuclearenergy nuclearfuels nuclearindustry nuclearnonproliferation ontario politicalaspects politicalfreedom politicalscience potashindustryandtrade potashminesandmining prevention purchasing russia(federation) saskatchewan security securitymeasures socialaspects tariffonminerals terrorism unitedstates uranio uranium uraniumenrichment uraniumminesandmining worldpolitics