More than 100 people were killed and thousands more left injured or homeless when a dam in West Virginia's rural Buffalo Creek Valley gave way. It had been built out of sediment left over from coal mining and collapsed after a heavy rainfall, sweeping away two more dams in its path. The collapse unleashed approximately 130 million gallons of black waste water onto the residents of the valley below. A study done 17 years later found that residents still suffered what lasting psychological effect? Discuss (http://forum.thefreedictionary.com/postst34216_The-Buffalo-Creek-Flood--1972-.aspx)
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