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By Janet McBride# u0 K& d: Z; j1 A* p1 ]1 x5 _( c: r
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LONDON (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.9 U7 h* ?& _6 \$ d4 r