Lt.Col. Ed Chamberlayne, the District Engineer for the Charleston, S.C., District of the U.S. Army Corps of Engineers, provides an update on the $300 million Charleston Harbor deepening project during a talk on the Isle of Palms, S.C., on Monday, Sept. 17, 2012. Chamberlayne was addressing the annual South Carolina International Trade Conference. (AP Photo/Bruce Smith)

Associated Press
Lt.Col. Ed Chamberlayne, the District Engineer for the Charleston, S.C., District of the U.S. Army Corps of Engineers, provides an update on the $300 million Charleston Harbor deepening project during a talk on the Isle of Palms, S.C., on Monday, Sept. 17, 2012. Chamberlayne was addressing the annual South Carolina International Trade Conference. (AP Photo/Bruce Smith)
Lt.Col. Ed Chamberlayne, the District Engineer for the Charleston, S.C., District of the U.S. Army Corps of Engineers, provides an update on the $300 million Charleston Harbor deepening project during a talk on the Isle of Palms, S.C., on Monday, Sept. 17, 2012. Chamberlayne was addressing the annual South Carolina International Trade Conference. (AP Photo/Bruce Smith)
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