THROUGH THE NIGHT U.S. Army Spc. Collen Parent works through the night bulldozing sand to close a strait between two peninsulas near Grand Isle, La., May 9, 2010. The closure will be a secondary defense in addition to the boom line in the Gulf of Mexico to prevent oil from reaching further inland. Parent is a heavy equipment operator assigned to the Louisiana National Guard’s 922nd Horizontal Engineer Company, 769th Engineer Battalion. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 831842-T-HLP51-633.jpg Photo Gallery