http://cbs2chicago.com/topstories/local_story_053224434.html FBI Terrorism Task Force Investigating I-55 Crash SLIDESHOW: Crash Scene Photos Jay Levine Reporting (CBS) CHICAGO A stunning discovery inside a car involved in a deadly crash on the Stevenson Expressway Wednesday has sparked a federal investigation. Two people were killed in the crash involving a number of cars and semi trucks. Chief Correspondent Jay Levine reports one of the people killed was carrying several suspicious items. CBS 2 has learned that members of the FBI Terrorist Task Force are among those involve din the investigation originally though just to be a huge traffic nightmare, but could end up...