These systems fail safely. In the meanwhile, millions of people worldwide die of air-pollution of the fossil fuel industry but they don't even get a 100th of the scrutiny that nuclear industry gets.

This is not a critique of nuclear power. It is simply a (mildly existential) realization that even with high reliability goals, failure is still possible.

I expect the teams developing ATC communications and the team maintaining the CANDU DCC to be distinct and not have many dependencies.