- As smoke again rises, a warning on water: The workers at the Fukushima Daiichi Nuclear Plant were again forced to evacuate as black smoke began to rise from Reactor 3, which as the video details is the lone reactor to utilize plutonium, making such a sight somewhat more serious than normal (though certainly, smoke pouring from any nuclear reactor is bad news). At the same time, parents in Tokyo are being told that babies and young children should not drink the tap water, as it contains high levels (nearly double the legal limit) of radioactive iodine. source