7 L: r2 w& G8 e, u$ a8 }By Janet McBride 5 a3 C/ [5 F# j) V9 T- p % {; S/ q* [1 a! XLONDON (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. ! V8 ^6 ?* l! F1 t% E4 x( r. j& Z0 O3 p: }' h