John M. Jensen: Ancient Canals in the Americas

John M. Jensen, author of Ancient Canal Builders in the Americas John lives in Florida and has been researching and writing about the canals and harbors he discovered in 2008. There are many underwater harbors, channels and canals on the Atlantic and Gulf Coasts that are covered with vestiges and remnants of a sophisticated, and large culture or civilization that existed BEFORE current sea level rose an average of 5' 5". Evidence shows many harbor areas on much of New York's Long Island So...