The tsunami that struck Japan last year destroyed four nuclear reactors at the Fukushima Dai-ichi nuclear power station on the east coast of the country. Radiation spread through the air and into the ocean, and workers labored for weeks to quench the melting reactor cores. Farmland and numerous towns were evacuated and much remains off-limits.
Since then, Japan has been temporarily shutting down its remaining nuclear plants as the public debates whether to swear off nuclear power permanently. But saying no to nuclear has been and will continue to be costly.