After a rip current swept Walter Marino and his 12-year-old son, Christopher, out to sea, darkness fell, and the sound of rescue helicopters and boats died away. Despite the danger, Christopher, who has autism, was enjoying himself. The boy lacks a fear of death because of his autism and finds comfort in the water, Marino told CNN.  Their unique circumstances helped keep them alive for more than 12 hours in the open ocean, Marino said. (Read the CNN story)