The Justice Department has told Volkswagen AG VLKAY 3.21 % to refrain from publicly releasing results of an independent investigation into cheating on diesel-emissions tests to keep confidential names and events key to the U.S. government’s probes. The Justice Department has asked Volkswagen to refrain from the releasing the results of an… The request to keep investigative details under wraps could complicate the car maker’s efforts to provide answers to shareholders, dealers and car buyers. The Justice Department has told lawyers for the firm that making any interim findings public would hamstring efforts to pursue potential criminal charges and a multibillion-dollar fine, according to people familiar with the matter. As recently as last month, Volkswagen had promised to make public details of an investigation being conducted on the company’s behalf by the law firm Jones Day. The investigation is still ongoing and not yet nearing completion, said people familiar […]