Police and union workers clash during a tense moment as union workers block a grain train in Longview, Wash., Wednesday, Sept. 7, 2011. Longshoremen blocked the train as part of an escalating dispute about labor at the EGT grain terminal at the Port of Longview.(AP Photo/Don Ryan)

Associated Press
Police and union workers clash during a tense moment as union workers block a grain train in Longview, Wash.,  Wednesday, Sept. 7, 2011.   Longshoremen  blocked the train as part of an escalating dispute about labor at the EGT grain terminal at the Port of Longview.(AP Photo/Don Ryan)
Police and union workers clash during a tense moment as union workers block a grain train in Longview, Wash., Wednesday, Sept. 7, 2011. Longshoremen blocked the train as part of an escalating dispute about labor at the EGT grain terminal at the Port of Longview.(AP Photo/Don Ryan)
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