As president of General Motors ?when Eisenhower tapped him to become secretary of defence in 1953, “Engine Charlie” Wilson voiced at his Senate confirmation hearing what was then the conventional view. When asked whether he could make a decision in the interest of the US that was adverse to the interest of GM, he said he could.

Then he reassured them that such a conflict would never arise. “I cannot conceive of one because for years I thought what was good for our country was good for General Motors, and vice versa. Our company is too big. It goes with the welfare of the country.”

Wilson was only slightly exaggerating. At the time, the fate of GM was inextricably linked to that of the nation. In 1953, GM was the world's biggest manufacturer, the symbol of US economic might. It generated 3 per cent of US gross national product. GM's expansion in the 1950s was credited with stalling a business slump. It was also America's largest employer, paying its workers solidly middle-class wages with generous benefits.