Via AFP:
Russia, the United States and other world powers put their sharp differences over Ukraine to one side on Tuesday as they held their latest nuclear talks with Iran in Vienna.
The gathering is the second in a series of meetings aiming to transform by July a November interim deal into a lasting accord that resolves for good the decade-old standoff and removes the threat of war.
So far, despite disagreements over the Syria conflict and other issues, the six powers have shown a united front over Iran, but events in Ukraine in recent weeks have precipitated the worst crisis in East-West rela...