Radiation News Roundup for June 4, 2013 TEPCO finds groundwater at Fukushima contaminated with radioactive cesium. english.kyodonews.jp Japanese citizen activist says that if children touch the ground containing radiation their reproductive organs are going to be deformed or sterile. enenews.com Top space scientist says radiation on the ground of Mars is lower than the radiation in space. articles.timesofindia.indiatimes.com Thousands rally in Japanese capital as government considers reopening reactors which were idled after 2011 disaster. aljazeera.co