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By Janet McBride ; k% _! _8 A9 }4 Y8 |& e. h, N- M% s8 u
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.+ x; `& N8 o1 S, e, E: }2 X6 a
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