To celebrate the 40th Anniversary of Free To Choose, we are sharing some of Milton Friedman’s most compelling talks. In this original recording from 1978, the question is what is the role of government in a free society? If we are to define the role of government in a free society, we must first specify the needs a government is expected to provide. Defense from foreign enemies and protection of property, including the enforcement of private contracts, are clearly legitimate functions of government. But when we come to two other functions of government—providing a substitute for voluntary cooperation when it …