President Obama Subtly Shifts NATO Aims in Libya 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 is applauded as he delivers a speech at the British parliament in London, on May 25, 2011. ( Jeff Mitchell/AFP / Getty ) Produced by Posey Gruener Produced by BBC , PRI and WNYC