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By Janet McBride 7 [- a9 V2 _+ L" M$ `% N$ Q8 K' G) |, C# }$ q7 {& A) |% h
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 w* m0 _# n# |7 Z
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