President Barack Obama tours a Daimler Trucks North America plant (March 7, 2012)

President Barack Obama tours Daimler Trucks North America Mt. Holly Truck Manufacturing Plant in Mount Holly, North Carolina, March 7, 2012. On this part of the tour the President saw the Chassis Airing Station where multi-colored nylon air lines are installed for the brake system. (Official White House Photo by Pete Souza)