U.S. President Barack Obama watches as a turbocharger is attached to a diesel engine under construction as he tours the Daimler Detroit Diesel plant in Redford

 
U.S. President Barack Obama watches as a turbocharger is attached to a diesel engine under construction as he tours the Daimler Detroit Diesel plant in Redford
U.S. President Barack Obama watches as a turbocharger is attached to a diesel engine under construction as he tours the Daimler Detroit Diesel plant in Redford, Michigan, December 10, 2012. REUTERS/Jason Reed