Toyota's Lexus LS stops automatically in front of a dummy during a 

Toyota's Lexus LS stops automatically in front of a dummy during a Toyota Motor Corp. demonstration of the pre-collision system (PCS) at its Higashi-Fuji Technical Center in Susono, southwest of Tokyo, Monday, Nov. 12, 2012. The PCS, one of the automaker's pedestrian accident countermeasures, watches out for pedestrians to avoid collisions with them. (AP Photo/Koji Sasahara)
Associated Press
Toyota's Lexus LS stops automatically in front of a dummy during a Toyota Motor Corp. demonstration of the pre-collision system (PCS) at its Higashi-Fuji Technical Center in Susono, southwest of Tokyo, Monday, Nov. 12, 2012. The PCS, one of the automaker's pedestrian accident countermeasures, watches out for pedestrians to avoid collisions with them. (AP Photo/Koji Sasahara)
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