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Union Pacific Threatens Proxy Fight: Saying Santa Fe Pacific Corp. shareholders should have an opportunity to consider its $3.25-billion bid for Santa Fe, Bethlehem, Pa.-based Union Pacific Corp. said it will solicit proxies from Santa Fe shareholders to vote against the deal at a special Santa Fe shareholders meeting Nov. 18. The date for the special meeting was disclosed in documents that Schaumberg, Ill.-based Santa Fe and Burlington Northern Inc. filed with the Interstate Commerce Commission, seeking government approval for their merger plan. Burlington shareholders would also vote on the deal Nov. 18.