Exxon Valdez Ushers in New Era of Pollution Response

On March 24, 1989, a huge tanker sailed from Valdez at the terminus of the Trans-Alaska Pipeline into Prince William Sound. The Exxon Valdez struck a reef and spilled 41.5 million liters of crude oil. 25 years ago, it was largest oil spill in U.S. history. Rosanne Skirble reports.