4 F# I. a+ l% L2 V0 x$ b# {& x& BBy Janet McBride 0 [8 n0 |6 ~9 q4 }! [ & B9 L0 X" q) Z" k$ T, 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.5 K" z( i8 Z/ B, O# Z: P