# April 2016 

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You may listen to the complete issue or select from individual clips from below. 

#### Introduction

#### [Christopher Preble and Trevor Thrall discuss the Obama Doctrine](/multimedia/cato-audio/christopher-preble-trevor-thrall-discuss-obama-doctrine)

#### [Penn Jillette on why he became a libertarian](/multimedia/cato-audio/penn-jillette-why-he-became-libertarian)

#### [Neal McCluskey on the problems with the Every Student Succeeds Act](/multimedia/cato-audio/neal-mccluskey-problems-every-student-succeeds-act)

#### [Michael W. Doyle on John Stuart Mill’s 1859 essay “A Few Words on Non-intervention”](/multimedia/cato-audio/michael-w-doyle-john-stuart-mills-1859-essay-few-words-non-intervention)

#### [Emma Ashford on the failure of sanctions on Russia](/multimedia/cato-audio/emma-ashford-failure-sanctions-russia)

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