Will the traditions of tiny Tangier Island survive or sink?

Life on Tangier Island has always been defined by water. Now it is menacing its very existence. Battered by Chesapeake Bay's relentless waves, scientists say the land’s shrinking is accelerating, as man-made climate change makes the waves from rising seawater worse. John Yang talks with Earl Swift, author of "Chesapeake Requiem," and examines how life in the singular community is threatened.