The Department of Justice is taking Visa, the largest card network in the U.S., to court, accusing the company of illegally monopolizing the debit card market. WSJ's Angel Au-Yeung breaks down the Justice Department's allegations. Further Listening: - The Unusual Economics of the Bilt Credit Card - The Deal That Could Change Credit Cards - The Trustbuster Taking on Ticketmaster Further Reading: - Justice Department Sues Visa, Alleges Illegal Monopoly in Debit-Card Payments - Google Faces Blockbuster Antitrust Case—Again - Getting Oasis Tickets Was a Nightmare. Ticketmaster Is Again Being Asked for Answers. Learn more about your ad choices. Visit megaphone.fm/adchoices