IMO, safety with regards to nuclear reactors is a moot point. The problem with nuclear reactors is that they are centralized and costly. You can't deploy a nuclear reactor in undeveloped countries because you still need to deploy the infrastructure. That's why solar and wind are the only viable solutions. Solar is decentralized, cheap, and mass produced and can be deployed in a matter of days. Storage is following a variation of Moore's Law, so we can expect storage cost to continue to drop over the next decades.
That renewables have certain advantages doesn’t make nuclear a moot point. The developing world will indeed be an area with enormous carbon emission potential, but where things stand now it’s the developed world that is emitting at a rate far greater than anyone else; and in these countries, the infrastructure exists.
The issue is still design/construction and political red tape. It sometimes takes decades to fund and build a nuclear plant, and we don't have decades. We should be focusing on easily deployable solar and wind, even in developed countries. I'm not against existing nuclear power plants (I get my energy from a CANDU reactor), I just think we need to ramp up solar because it kills two birds with stone by tackling the issue in all parts of the world simultaneously.
