+ e& f s0 V$ E" UBy Janet McBride 0 G, _0 U2 [2 f: ~% s* J) z% j . t8 U5 }* W! i# K9 x1 YLONDON (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.4 }5 D! a. h" @& m