A section of the new rolling gates for the Panama Canal's third set of locks towers over workers during a press tour in Gatun, Panama, Thursday, Aug. 22. 2013. As part of the Canal expansion program, the first four gates for the new locks have arrived from Italy for a total of 16 rolling gates that each weigh an estimated 3,100 tons. The construction of the third set of locks will allow the passage of Post-Panamax vessels or container ships much too big to fit through the Panama Canal's old locks. (AP Photo/Arnulfo Franco), APTOPIX