Ezekiel Emanuel, Rahm's elder brother, is a physician who helped design ObamaCare and has been one of its most intense champions. So you may be surprised to learn that in his new book, "Reinventing American Health Care," he predicts that tens of millions more Americans will lose their medical plans in the coming decade.

In its "You're the Boss" small-business blog, the New York Times quotes his prediction that by 2025, "fewer than 20 percent of workers in the private sector will receive traditional...