Forty percent of everything that the United States imports -- car parts, bananas, lumber, jet engines, grain, shoes, phones, sofas, and so much of what fills the aisles of Nordstroms and Walmart and Home Depot -- comes through the Ports of Los Angeles and Long Beach. Together, these harbors form the busiest port complex in the United States, and the ninth busiest in the world. Cargoland follows the workers at the harbor, the goods they touch, and the changes that are forcing a new way of life on America’s most trafficked waterfront. Click here to explore more of Cargoland. Cargoland was produced by Lu Olkowski as part of KCRW’s Independent Producer Project .