U.S. Department of Transportation Secretary Ray LaHood said a government investigation could not conclusively link Toyota Sudden Unintended Acceleration problems to vehicle electronic control systems. Sudden Unintended Acceleration has resulted in thousands of automobile crashes, and led to the recall of more than 8 million Toyota vehicles of varying makes and models in 2009 and 2010. Beasley Allen attorney Graham Esdale told WSFA News 12 that the study is incomplete. He says there are ongoing tests and studies that have already linked SUA to electrical systems. Toyota claims the problems are the result of mechanical issues such as sticky accelerator pedals or improperly placed floor mats, or even driver error.