Testament and The Day After assume a large degree of success of Government civil defense plans

In the Day After the Government never really loses control of the situation, in accordance with plans the states regain control, eventually the federal government returns. In Testament we don't see the civil defense plans roasted the same way as the British plans. Both films emphasize that Nuclear war is catastrophic but don't doubt that the Government will fail to retake control. 1 Does anyone know of any films that conducts nuclear criticism and describes the collapse of the US?