Having received 10 battle stars for World War II service, the USS Spearfish (SS-190) was built at the Electric Boat Company in 1937 and was under the command of Lieutenant C.E. Tolman, Jr. The USS Spearfish (SS-190) conducted sea trials off New London, Connecticut, and then held its shakedown cruise in the Guantanamo Bay area from 21 August to 3 October. She was overhauled at the Portsmouth Navy Yard in Kittery, Maine, from 1 November 1939 to 2 February 1940. On 10 February, she set sail for the West Coast. After training operations in the San Diego, California, training area from 6 March to 1 April, the submarine sailed to Pearl Harbor. In 1947, the submarine was struck from the Naval Vessel Register and sold for scrap one year later. Asbestos fibers in building materials are generally not harmful to one’s health unless they are disturbed and become airborne, or if the material is somehow compromised and begins to break down. Once these tiny shards enter the lungs they often become lodged in lung tissue. Although the human body has the ability to self-clean lungs, the nature of asbestos fibers makes them especially difficult to expel and they may stay in the lungs indefinitely. Over time, these fibers can cause scarring and inflammation, reducing lung function and making breathing difficult.