China's airheaded 'air-defense zone' angers neighbors

China has unilaterally declared an "air-defense identification zone" (ADIZ) over a vast area of the East China Sea, covering disputed islands that are also claimed by Japan and Taiwan. China's ADIZ also brings China into conflict with Korea and Japan China's defence ministry said that military aircraft entering the zone must obey its rules or face "emergency defensive measures." Japan refers t ...