What can be Greener than Nuclear Power

Seriously??  Why haven't there been any nuclear power plants built in the last 30 years?  They are safe, clean, and produce a lot of power.  Is it the transportation of nuclear waste?  Is it the disposal of nuclear waste?  Is it the threat of a possible meltdown?  How much was spent in the Gulf trying to plug that well and clean up the oil? I'm sure you could have built a couple of nuclear reactors with that money.  Why are we putting so much money in green technology when we already have it?  I don't mind research, but if it works, use it!