Contaminated water continues to defy human control at Fukushima (also at places such as Hanford):
Contaminated water, fuel extraction stand in way of decommissioning Fukushima plant. The Mainichi, April 3, 2016 (Mainichi Japan) http://mainichi.jp/english/articles/20160403/p2a/00m/0na/010000c
With about five years having passed since the start of the Fukushima No. 1 Nuclear Power Plant disaster, nuclear workers still lack a method of treating the around 1,000 tanks of contaminated water stored on site, and the start of work to remove melted nuclear fuel from the plant remains at least five years away.Meanwhile at Daiichi, visible emissions continue to be lower than they have been the last couple of weeks, perhaps due to the ice wall. Still, as you can see below, (radioactive?) steam is still quite visible:
"Until the contaminated water issue is solved, decommissioning of the reactors remains far off. We have to stop the water," says Tetsuo Ito, professor of nuclear energy safety engineering at the Kinki University Atomic Energy Research Institute. Akira Ono, chief of the Fukushima plant, says, "We're still at step one" of the decommissioning process, which is estimated to take until 2041 to 2051.