"...The cost of dismantling the Fukushima plant may reach 20 trillion yen, and compensation for households in a 20-kilometer evacuation zone may total 630 billion yen over 10 years, according to the Japan Center for Economic Research...."
Dismantling Fukushima "MAY" reach 20 trillion yen which equates to around $US250 billion.
Japan "DOES" spend :
$220 billion per/yr on coal $160 billion per/yr on oil $370 billion per/yr on gas And the human health costs caused by pollution equates to all the obove combined.
Conclusion : Uranium is a cheap,clean and reliable energy source