Iran's top diplomat says an agreement made in Cairo on cooperation between Iran and the UN's nuclear watchdog has lost significance to Iran as Britain, France, and Germany - signatories to Iran's 2015 nuclear deal -- triggered the return of the UN sanctions over Tehran's non-compliance. Tehran had threatened to halt cooperation with the agency if they sought to reimpose the sanctions. "The three European countries thought they had a leverage in their hands, threatening to implement a snapback," Araghchi said during a meeting with foreign diplomats in Tehran. IMAGES AND SOUNDBITES