Okay dummies...
Can we put our fear-mongering aside for a second and do some thinking? This nuclear disaster is localized in Japan. Yeah, it's a disaster -- really, there's no evidence as to how anyone outside of Japan, or the immediate Asian peninsula could be significantly effected by this disaster.
Two issues can change that:
1) If the reactors completely blow the fuck up, throwing all the nuclear material into the air (no, this hasn't happened yet).
2) If the cores catch on fire and they're unable to put them out. (no, this hasn't happened yet).
And, for all you Fox-News loving retards out there, here's how you should interpret the radiation exposure figures they're throwing around:
http://en.wikipedia.org/wiki/Banana_equivalent_dose
Ugh. Relax. As of right now, i'd bet more people have been hurt by the inability to access clean water.