my 2cent about the radiation thing,as far as im concern cos i study physics till my uni lvl already,this radiation thing actually can be spread very fast and to very far cos the half-life can just duplicate and multiply in a very short time,and somemore i think the radioactive substance they use should be quite a something cos its a power plant and also its spreading direction is RANDOM but not too sure about the wind blow thing,maybe u in malaysia are experiencing a little radiation u never know that. For me,if i already have a trip plan to go to anywhere near japan i don find a reason to cancel it,because you gonna be there like a week?like as though for a week u are exposed to slightly higher radiation level u will be diagnosed with cancer,unlike the 50 workers that work nearby the power plant that are constant exposed to the radiation. No offense everyone just my opinion about this. Maybe some sifu that is expert in this field can explain more