Updated Jul. 11, 2017 8:05PM EDT / Published Sep. 26, 2013 6:43AM EDT The Daily Beast recently obtained unpublished data on birth defects in Japan, which showed a small increase in prevalence rates for 2011—the year there was a triple nuclear meltdown in Fukushima Prefecture. The prevalence rate—the frequency of malformations among childbirths, such as holes in the heart (atrial septal defect)—was