Katsutaka Idogawa, the frail looking mayor of Futaba town in Fukushima, does not immediately strike one as a likely ally to Sotbank’s (9984) confident and charismatic Chairman Masayoshi Son. Yet his short testimony at Japan’s parliament during a questioning session on Noda’s post-Fukushima policies might give boost to the likes of Mr. Son who carry the private sector flag for Japan’s push into alternative energy while being another damning episode for those who support nuclear power. Mr. Idogawa talked about citizens whose “hair was falling off”, told tales of children who were falsely shepherded to polluted areas, and unleashed anger at those who argue limited radiation…