Arab Spring and the Obama Doctrine Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email US President Barack Obama speaks about US and NATO involvement in military action against Libya during a speech at the National Defense University in Washington, DC, March 28, 2011. ( Saul Loeb/Getty ) Produced by Hsi-Chang Lin Produced by PRI and WNYC