While GM bears full responsibility for not recalling these vehicles in 2005 and changing the design for future models, NHTSA bears responsibility for not investigating and ordering a recall by 2007 when it discovered the defect and failed to influence a recall by GM. The Center for Auto Safety discovered internal NHTSA records that showed the agency learned of the defect through Special Crash Investigations into the advanced airbag systems in 2005 Chevrolet Cobalts. NHTSA not only met with GM regarding the defect in 2007, but also opened an initial evaluation to determine whether a defect investigation was warranted. No defect investigation resulted from this evaluation. Another evaluation was conducted by NHTSA in 2010 with the same result, as the agency was unable to find a defect trend in their data. NHTSA also obtained records of 17 lawsuits and claims from GM on Chevrolet Cobalts and Saturn Ions through its Early Warning Reporting System, but kept the records from the public.