In 1943 a U.S. destroyer supposedly vanished, the result of a Navy experiment with electromagnetic radiation. Now there is talk of a new weapon soon to be auctioned. Rumors link it to the great inventor Nikola Tesla, who was working with the Navy when he died in 1943. Was he involved with the experiment? And are his notes in enemy hands? Juan Cabrillo and his Oregon colleagues race to find the truth. Ninth in the Oregon Files.