Episode 35: Why do countries restrict trade?

If free trade is so great, then why aren't there any countries that practice completely free trade? This video goes through the basic arguments given for restricting trade.

"Episode 35: Why Do Countries Restrict Trade?" by Dr. Mary J. McGlasson is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License.

economics,trade,protection,protectionist,policy,restrictions,