Richard Windsor may be the most famous Environmental Protection Agency employee. Oddly, he does not exist. “Windsor” is the e-mail alias that Lisa Jackson, former head of the EPA and now an environmental adviser to Apple, used to correspond with environmental activists and senior Obama-administration officials, among others. Windsor, we have learned, was also an employee of significant achievement. Documents released by the agency in response to a Freedom of Information Act request reveal that, for three years, the EPA certified Windsor as a “scholar of ethical behavior.” The agency also documented the nonexistent Windsor’s completion of training courses in...