500-pound bomb dropped during World War II explodes at Japanese airport: Watch video
It remains unknown what caused the bomb to explode after lying ... Unexploded bombs in Japan not uncommon Finding unexploded ...
BBC5y
German WW2 bomb leaves giant crater in field
It was not immediately clear what caused a blast so powerful that it ... decided it was "with almost absolute certainty" a World War Two bomb. They believed it was a 250kg (550lb) bomb dropped ...
Texas Public Radio15d
'Lack of oversight' among causes for fatal collision of WW2-era aircraft at Dallas air show
National Transportation Safety Board investigators say a lack of oversight and administrative risk controls were among the ...