Project coordinator Emma Hickerson, left, marine archeologist Christopher Horrell, center, and Capt. Darrell Walker look at a sonar image as they search for the wreckage of the USS Hatteras in the Gulf of Mexico off the Texas Coast Monday, Sept. 10, 2012. The Hatteras was sunk in 1863 during the Civil War by the CSS Alabama. (AP Photo/Pat Sullivan)
