The biggest concern at Fukushima is the huge source of radioactivity from molten fuel and spent fuel pools winding up in ocean because the health of the entire Northern Pacific is at stake. cbc.ca Fukushima plume of radioactivity is headed to Southern Hemisphere and will enter the South Pacific and Indian Ocean after 2 decades. Enenews.com Scientists study using low-dose radiation to cure cancers that have spread through the body. philly.com South Korea and the United States draw up a North Korean nuclear deterrence plan. globalpost.com