president obama is certainly pro-nuclear power. >> what helped shellenberger's conversion is how much the world has learned from nuclear disaster. >> after 37 mile island, after the fukushima disaster, you saw a reaction all around the world to take a second look at earthquake and tsunami risks. >> many of us in the nuclear industry have fought for some time to have nuclear acknowledged as green energy. it is a very benign source of energy generation. >> i can see people rolling their eyes saying, mabel, did you hear what he just said? >> i would encourage mabel and her partner to do some more homework on this. >> a new generation of reactors like the westinghouse ap 100, its backup system doesn't use regular source of power to cool down. >> helping mitigate the issues we had at fukushima. >> westinghouse, even the new design requires a constant flow of water to the reactor core to prevent melt-down. the next generation of reactors will make things even safer. >> why could you not divine a reactor that had no notion to release nuclear material? i set out to save the world with nuclear