Attorney General Lisa Madigan is taking the lead role in investigating a credit card breach at Jimmy John's.  More than 200-stores across the country were hit by hackers, including some in Springfield, Champaign, Charleston, Quincy, Collinsville and Chicago.  Madigan says anyone who used their credit or debit cards at the sandwich chain between June 16th and September 5th should keep a close watch on their accounts and report any unauthorized charges.  Jimmy John's is offering credit protection services to customers who are impacted.