As engineers in Japan struggle to bring crippled nuclear reactors under control, Americans are marking the anniversary of the worst nuclear accident in U.S. history.The partial core meltdown at Three Mile Island on March 28, 1979, was a major setback for nuclear power in the U.S.
Even on a slow day, Tsukiji market, the largest fish market in the world, is a beehive of activity.Motorized carts buzz down narrow aisles carrying tuna carcasses. They're sawed into chunks and shipped to restaurants in Tokyo and around the world.Normally, these aisles would be jammed with buyers.
Scientists examining the types of radioactive substances that have spewed from Japan's Fukushima Dai-ichi nuclear power plant conclude that it's overwhelmingly material that will turn harmless in the next few months.
The nuclear crisis in Japan is prompting scrutiny of nuclear power plants in the U.S., leading to a decades-old question: What to do with all the spent nuclear fuel produced here?The law says the federal government is supposed to take nuclear waste off the hands of plant operators.