First responders work the scene of a charter bus crash on Interstate 55 near Litchfield, Ill. Thursday, Aug. 2, 2012. The double-decker Megabus carrying 81 passengers blew a tire and sl

 

              First responders work the scene of a charter bus crash on Interstate 55 near Litchfield, Ill. Thursday, Aug. 2, 2012. The double-decker Megabus carrying 81 passengers blew a tire and sl
First responders work the scene of a charter bus crash on Interstate 55 near Litchfield, Ill. Thursday, Aug. 2, 2012. The double-decker Megabus carrying 81 passengers blew a tire and slammed head-on into a concrete bridge support pillar. Four people injured in the crash were flown by helicopter to a trauma center, others were treated at local hospitals. (AP Photo/The State Journal-Register, David Spencer)