Fukushima happened a mere 2 years ago, isn't it a bit soon to draw conclusions when you know that nuclear-induced cancers and illnesses can sometimes be trigger

Fukushima happened a mere 2 years ago, isn't it a bit soon to draw conclusions when you know that nuclear-induced cancers and illnesses can sometimes be triggered dozens of years later? I am not an expert about that particular subject by any means, but it does seem a bit premature at this point.