Hinckley Point does the most toxic process on Earth. It had planning until 1990. Yet it is still operating. Under the highest level of legal scrutiny – I don't think so.
People were either incompetent to the highest degree, or got some serious finance. Corruption.
Which means Theresa can't authorise Hinckley C, as Hinckley B has violated planning so spectacularly. Any new plant is a green field site, with a full Royal Commission. And invalid insurance – as any new nuclear plant needs insurance cover of 100 billion.
And there is no commercial insurance above 1 billion. Fukishima bankrupted the second richest country on Earth.