ISTANBUL - The remaining differences between Iran and world powers over a potential deal to curb Tehran's nuclear program are narrow and a historic deal is within reach, British Foreign Secretary William Hague said on Wednesday.
"The differences that remain between the parties are narrow and I believe they can be bridged with political will and commitment," Hague told a news conference in Istanbul.
"It is the best chance for a long time to make progress on one of the gravest problems in foreign policy."