Sure, once it's perfectly stirred every glass of water from the ocean contains radiating Fukushima atoms. You just have to make sure none of your cells is currently on the edge to switch to cancer mode.
I'm not saying that it's not a problem, but we have been conducting underwater nuclear tests, and dumped an incredible amount of nuclear waste in the ocean (http://en.wikipedia.org/wiki/Ocean_disposal_of_radioactive_w...). And we're still alive. Even if we proceed to dump all of Fukushima in the ocean and just forget about it, it will still be extremely diluted and less than what is already there.
Look especially at the the varying background radiation levels -- and minimum level of radiation that has been proven to increase cancer risk. (And if you're trolling, go to the gym instead.)
Did all that years ago, didn't come to the conclusion radiation and cancer are unrelated. But, if you think a higher mutation rate is a good thing go ahead, I think Tepco is currently looking for that kind of worker.
