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Chain-reaction collision on Iowa highway

Associated Press
Crushed vehicles and semi-trailers sit on Highway 20, Monday, March 5, 2012, after chain-reaction collisions occurred involving nearly two-dozen vehicles near Webster City, Iowa. Authorities are blaming the pileups on poor visibility due to fog and thick, black smoke billowing from burning hay bales nearby. Eight people were hospitalized, two are reportedly in serious condition.  (AP Photo/The Messenger, Jessie Helling)

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Eight people have been hospitalized — two in serious condition — after chain-reaction collisions involving nearly two-dozen vehicles on U.S. Highway 20 in north-central Iowa on March 5. Authorities are blaming the pileups on poor visibility due to fog and thick, black smoke billowing from burning hay bales nearby.

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