The Justice Department is pushing a federal judge to force Google to sell its AdX advertising exchange and overhaul its ad business practices. AdvertisementBrinkema, an 81-year-old who joined the bench in 1993, has homed in on technical aspects of the Justice Department’s demands. AdvertisementGive web publishers more controlThe Justice Department has recommended several changes to Google’s ad server business. In addition, the Justice Department has proposed requiring Google to build another tool to make its ad server work with another popular ad tech tool called Prebid. The Justice Department’s proposal, which he called “naively unrealistic,” would require Google to reveal the “heart” of the ad server.