The Nuclear Option

What's interesting to me is the double-legged stool Monbiot has now built to support his pro-nuclear stance.
The first leg was constructed on the climate change rationale — that nuclear power, despite its considerable drawbacks, has to play a muscular role in decarbonizing the world's energy economy.
The second leg, as anyone can see with his latest Guardian column, is built on a refutation of long-standing claims made by the anti-nuclear movement.
Is this a sturdy enough construction to defend nuclear power as a viable option in the climate debate?