The U.S. Department of Justice launched an antitrust case this week against Live Nation, Ticketmaster's parent company. The case could have implications in Canada, where the company already faces legal and regulatory scrutiny. Why are concert tickets so expensive, and what would it take to make them more affordable? »»» Subscribe to CBC News to watch more videos: http://bit.ly/1RreYWS For breaking news, video, audio and in-depth coverage: https://www.cbc.ca/news Follow CBC News on TikTok: https: