Speaking of knowing how high is high enough... Yanosuke Hirai was responsible for forcing a 46-foot wall to be built at a different powerplant. In Fukushima, th

Speaking of knowing how high is high enough... Yanosuke Hirai was responsible for forcing a 46-foot wall to be built at a different powerplant. In Fukushima, the 19-foot wall didn't do much to stop the 43-foot tsunami[1] 1: http://www.oregonlive.com/opinion/index.ssf/2012/08/how_tenacity_a_wall_saved_a_ja.html http://www.oregonlive.com/opinion/index.ssf/2012/08/how_tena...