With Europe under threat, Washington fixates on 'enemy within'

EU leaders gathered in Copenhagen today, just days after airspace intrusions by unidentified aircraft closed Danish airports. As the drones menaced NATO's eastern flank, Washington was gathering top US military brass in Quantico, Virginia - focused not on external threats, but on what the White House calls the enemy within." Shashank Joshi, defense editor at The Economist, tells The World's Host Carolyn Beeler how European allies view that juxtaposition.