Radio: Cellophane's Lincoln

In most wars of the last 100 years or so, Du Font's was a good place to shop for sure-fire powder. But for the last 20 years, Du Pont has been easing out of the war business, in 1936 stopped promoting munitions sales abroad altogether. Nowadays it has a less lethal line—and the Du Pont name is best known for stuffs like Duco, Rayon, Zerone, nylon (for fish line, brush bristles, silky hose), plastics, Cellophane. Last year vast E. I. du Pont de Nemours & Co., chemicals empire (total assets: $857,618,123), had $299,000,000 in sales. This included only a 1% increase...