MOX, the Toxic Fuel Inside Japan's Fukushima Daiichi Nuclear Plant
Several of Fukushima Daiichi's reactors are spewing radioactive material, but just one contains the even more toxic MOX fuel. Eve Conant reports on the controversial mixture of uranium and plutonium—and the likelihood of its dispersal into the air.
An aerial view shows the quake-damaged Fukushima nuclear power plant in the Japanese town of Futaba, Fukushima prefecture on March 12, 2011. Credit: Jiji Press / Getty Images