The Department of Justice wants Google to break up its advertising business. The Wall Street Journal’s Keach Hagey explains how the DOJ’s antitrust suit could reshape the internet. This episode was produced by Amanda Lewellyn, edited and fact-checked by Matt Collette, engineered by Patrick Boyd with help from Efim Shapiro, and hosted by Noel King. Transcript at vox.com/todayexplained   Support Today, Explained by making a financial contribution to Vox! bit.ly/givepodcasts Learn more about your ad choices. Visit podcastchoices.com/adchoices