Those two failures are two too many, especially Fukishima, where they are one earthquake or removal mistake away from triggering the jumbled fuel rods at the bottom of what was once a containment vessel into reaching critical mass which would result in them burning and spewing massive amounts of radioactive fallout into the atmosphere for hundreds or thousands of years. Add to that, that they have no idea what to do with the waste other than store it in temporary containers all over the world. It's irresponsible and foolish to use them.
The earth is a molten planet with a relatively thin crust. With known drilling technology, that heat source could power a virtually unlimited number of clean, heat exchanging steam driven turbines.