FILE - In this June 19, 2009 file photo, a vehicle burns near a train derailment near Rockford, Ill. Residents were forced to evacuate after the fiery freight train derailment northwest of Chicago. ... more 
FILE - In this June 19, 2009 file photo, a vehicle burns near a train derailment near Rockford, Ill. Residents were forced to evacuate after the fiery freight train derailment northwest of Chicago. For two decades, one of the nation’s most common types of rail tanker, known as a DOT-111, have been allowed to haul hazardous liquids from coast to coast even though transportation officials were aware of a dangerous design flaw that almost guarantees the car will tear open in an accident. The rail and chemical industries have committed to a safer design for new tankers, but they do not want to modify tens of thousands of existing cars. That’s despite a spike in the number of accidents. (AP Photo/Rockford Register Star, Scott Morgan) MANDATORY CREDIT less 
1 / 28
Associated Press | Photo By Rockford Register Star, Scott Morgan
Wed, Sep 12, 2012 9:45 AM EDT