[GoNative]

There has already been damage to the environment in the immediate area that will be long lasting. I doubt very much that anyone who lived within 10km of the reactors will be going back to their homes in the forseeable future. I doubt anyone within 20km would even want to go back. The point is because there hasn't been a massive explosion of the likes of Chernobyl means any radioactive material ejected into the atmosphere is not going up high enough to be able to travel that far. Which is why there is very little chance anyone in places like Tokyo will have hardly any increase in radiation at all. Certainly utterly impossible for any other countries be affected in any harmful way.