Press-Register - al.com (blog)US Navy adds additional $7.2 million to contract to IngallsShipbuildingPress-Register - al.com (blog)PASCAGOULA, Mississippi -- IngallsShipbuildingwas awarded a $7.2 million contract add-on related to the DDG 1000 Zumwalt-class destroyer, the Department of Defense announced last week. IngallsShipbuilding, a division of Huntington Ingalls Industries...