Washoe County Library System

In the early hours of February 25, 1968, a Russian submarine armed with three nuclear ballistic missiles set sail from its base in Siberia on a routine combat patrol to Hawaii. Then it vanished. As the Soviet Navy searched in vain for the lost vessel, a small, highly classified American operation using sophisticated deep-sea spy equipment found it—wrecked on the sea floor at a depth of 16,800 feet, far beyond the capabilities of any salvage that...