Construction workers erect a network of steel reinforcing rods to create an inside wall of the Pentagon. Construction workers erect a network of steel reinforcing rods inside a formwork in which concrete will be poured to create an inside wall of the D-ring of the Pentagon on Feb. 12, 2002. Crews are working nearly around-the-clock as they pour concrete for floors and walls to replace those damaged in the Sept. 11, 2001, terrorist attack on the building. SHARE: Download: Full Size (0.17 MB) Credit: VIRIN: 187379-P-XJU35-518.jpg Photo Gallery