James Tejani discusses his new book “A Machine to Move Ocean and Earth,” which reveals the untold story of how the Port of Los Angeles was carved from 3,400 acres of marshland to become the Western Hemisphere’s busiest container port. Unlike San Francisco’s natural harbor, this massive engineering project defied both nature and expert opinion. Tejani explores how Civil War generals, Mexican landowners, railroad barons, and government scientists shaped the port’s development. Now handling roughly $300 billion in cargo annually, the port represents both tremendous economic success and significant environmental transformation.