Mrs. Kern works silently. She learned months ago never to refer to what she’s doing as anything other than “your makeup, Mr. President.” She learned never to let him see the hair pieces before they’re installed, never to leave any evidence in the bathroom afterward. The synthetic hair gets collected and disposed of in a specific medical-grade bag. The adhesive bottles are kept in her bag, never in the bathroom cabinets. There is no proof of the construction, only the result.