Answer:
Using a magnetometer, the Cussler crew located a metal object about four miles off the coast of Sullivan's Island. After diving in nearly 30 feet of water, they removed three feet of sediment to reveal one of the Hunley's two small conning towers.
Explanation:
They were executed by the electric chair.
The Rosenbergs were executed for conspiracy to commit espionage on June 19, 1953. The other spies who were caught did go to federal prison, but Julius and Ethel Rosenberg were both executed by electric chair.
