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By Janet McBride ' o# r+ z% E; L7 p5 r 4 {$ f$ @4 T. f7 D. M/ u5 nLONDON (Reuters) - Oil rose towards $70 on Wednesday as U.S. warships put on a show of force off Iran's coast, coinciding with a United Nations agency report that said the Islamic republic had expanded its nuclear programme. . W" x' y1 C0 i0 q. r% c( T - D/ k; e. Q( y- J% u* c) \( n' ]" k6 e8 j6 G http://www.globeinvestor.com/ser ... TS-OIL-COL/GIStory/