Giant wasps of Fukushima

Attached is a link to a report of some people near Fukushima being attacked by 3" long wasps. The Giant Japanese Hornet is a mere 1.6" long according to Wikipedia. So it can't be that insect. Are these gigantic wasps the first reported Fukushima insect mutations? What else could they be? You can read about the giant wasps of Fukushima and several other important Fukushima issues in the article How I spent my Sunday in Fukushima HERE.