Paralysis goes way back before fFukushima.

While distance can make them safer, it also makes them less efficient.

There are no standard designs for nuclear reactors yet, although this is slowly changing.

Nuclear reactors have always been run at great subsidy.

Only two MSRs have ever been built, over half a century ago and have a huge list of disadvantages. Not saying that can't be overcome, but it takes time, money, and will. There is some movement in this area.

With solar and wind making such great strides, advantages of nuclear are decreasing.