What past elections can teach us about fear politics

Aired: 1/26/2016 | 0:09:32 | Clip
Fear of terrorism has been a recurring theme of the current presidential race -- from grave callbacks to November’s Paris attacks to promises of bans on Muslim immigrants -- but the tactic is nothing new in American politics. Judy Woodruff talks to Stephen Walt of Harvard University and Beverly Gage of Yale University for some historical perspective on fear in electoral politics.

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