May 1, 2013 |  LABOR MOVEMENT | Every year on May 1, workers around the world celebrate the trials and triumphs of working people. This year, May Day comes with a bold soundtrack thanks to Tom Morello, the Nightwatchman. Morello, a good friend of the Teamsters, talks with the Union about his music and involvement with social justice causes. Download Morello's "Union Town." Learn the history of International Workers Day.