An American bomb from WWII explodes at a Japanese airport, leaving a crater on the taxiway The Associated Press500-pound bomb dropped during World War II explodes at Japanese airport: Watch video Yahoo! VoicesBomb dropped by U.S. in World War II explodes at airport in Japan, causing runway damage and cancellation of 80 flights CBS NewsBuried US second world war bomb explodes at Japanese airport The GuardianWorld War II-era bomb explodes at busy international airport, cratering taxiway Fox News