A half- hour walk may have you looking at the world differently. The sixth annual tunnel of oppression at Southern Illinois University Carbondale returns next week. The Tunnel of Oppression is a 30-minute interactive walk where visitors will experience more than a dozen themes including race, gender and body image. University Housing Education and Outreach Coordinator Alfred Jackson says the event gets people to look at things through a different set of eyes. The Tunnel of Oppression walk runs February 20th through the 23rd in the lower level of Grinnell Hall on the SIUC campus.