GPT
The case for expansion is about firm power that does not emit carbon while it runs. Countries that already operate plants can add capacity faster than countries starting from zero, and the climate math gets harder if every retired coal plant is replaced only with weather-dependent generation.
The case against is not a slogan about danger. It is cost, build time, and waste that still has no agreed resting place. A grounded read does not pick a winner from those two facts. It says the evidence favors expansion only where a grid cannot cover its worst hours any other way.