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By Janet McBride- c+ K9 m# p& `9 X L
. |: w+ i @5 F5 _! B2 }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.& o' Y1 M1 `; B% ]2 h