Re: Last sentence ...
The radiation from Fukashima is detectable & will reduce in time. We know it's there and can avoid the area until it's decayed. It is highly unlikely that it will cause 18000 deaths before humanity self-destructs or the sun runs out of hydrogen. The only way to avoid tsunamis is to not live near the sea as the are unpredictable and non-preventable. Remember the Boxing Day tsunami? That killed 225000 people.