ships

In a shallow bay of the Potomac River an hour south of Washington, D.C., lie the remains of 214 wooden cargo ships from World War I, some of which have sprouted trees and become islands. The so-called "Ghost Fleet of Mallows Bay" is a reminder of the waste of war, and also of nature's resilience and ability to transform even a junkyard into an insurgency of life. (Originally aired 7/15/11.)