The post you are reporting:
Wikipedia is rather reliable in describing events. Here a brief extract:
"The Fukushima incident has led to trace amounts of radiation, including iodine-131 and caesium-134/137, being observed around the world (New York State, Alaska, Hawaii, Oregon, California, Montreal, and Austria). Large amounts of radioactive isotopes have also been released into the Pacific Ocean."
Back to my views again: What would happen if another quake struck the crippled Fukushima plant is another question.
It could lead to masses of plutonium entering the sea.
Economic consequences: Japan relies heavily on seafood as part of the national diet. They would need to import fish from elsewhere. But, the plutonium, isotopes et al would rapidly spread to all seas, and so sea fish in general would be polluted with uranium, and much fish would die anyway as a result.
Alternative food would need be supplied to all countries relying on seafood, so rice, grain, meat and vegetables would soar in price.
A ripe old fruitcake thee, then!