ROUGH CUT (NO REPORTER NARRATION)<br/> <br />President Barack Obama during a speech in Washington on Friday was heckled by an audience member who asked him about U.S. plans for "nuclear war" with Russia.<br/> <br />Obama was addressing the winter meeting of the Democratic National Committee when a man in the back of the audience interrupted his speech.<br/> <br />"Tell us about your plans for "nuclear war" with Russia," the man yelled out at Obama.<br/> <br />He was met with a few jeers from the audience before President Obama asked him "what the heck are you talking about?"<br/> <br />Earlier in the day, armed men took control of two airports in Ukraine's eastern region of Crimea in what the new Ukrainian leadership described as an invasion by Moscow's forces.<br/> <br />President Obama warned Russia that military intervention in Ukraine would lead to "costs," as tension with old foe Russian President Vladimir Putin rose in a Cold War-style crisis.<br/> <br />U.S. officials said they saw indications of Russian troop mo
