Baghdad' round end: ""It is pretty tough going... We are moving forward, we are talking about the substance!"

"...The nub of the dispute appeared to be Iran's demand for fast relief from economic sanctions as part of any deal for it to stop higher-grade uranium enrichment, a pathway to nuclear arms, whereas Western powers insisted Tehran must first shut it down.But there was no sign of either breakdown or breakthrough in the talks ... Both sides had a compelling interest not to let diplomacy collapse..."They are pushing back on enrichment and asking us to engage their plan," another Western diplomat said. "It is pretty tough going, but I don't think anyone ever expected anything else. We are moving forward, we are talking about the substance, we are looking for areas of common ground.""