In this Uncommon Knowledge classic from February 10, 1999, Milton Friedman, recipient of the Nobel Prize in Economic Science in 1976 and a senior research fellow at the Hoover Institution from 1977 to 2006, discusses, with Hoover research fellow Peter Robinson, what defines a libertarian and how Friedman balances the libertarians' desire for a small, less intrusive government with environmental, public safety, food and drug administration, and other issues.