The salvaging of the Queen Anne's Revenge, the flagship of early 18th-century pirate Blackbeard, from its watery grave off the North Carolina coast, is chronicled. The process enables researchers to determine whether, as legend has it, the pirate purposely ran the ship aground in order to cheat its crew out of booty from a blockade of Charleston, S.C. Included: remarks from marine archaeologist Lisa Briggs; author Angus Konstam ("Blackbeard") and David Moore (North Carolina Maritime Museum).