The product was a pain reliever made by one of the most trusted companies in America. Months earlier, at a plant in Puerto Rico, two lots of it had failed a laboratory test: the caplets might not dissolve properly, which means, in the plainest reading, the medicine might not work. Nobody had been hurt. Nothing had been reported. And the company had told the government it would get the product back. It just never used the word recall. It called the program a purchase project. The word recall was the thing being avoided, because a recall is public, and public is expensive. The whole thing came apart because of a piece of paper.