Iran’s foreign minister called on Saturday for a “realistic response” from the United States to Iranian proposals at indirect talks in Vienna aimed at reviving Tehran’s 2015 nuclear deal with world powers, state media reported. The comments came as talks continued for a third day on Saturday with few expecting a breakthrough compromise while Tehran’s disputed uranium enrichment programme surges forward. “Hossein Amirabdollahian stressed the need for a realistic US response to Iran’s constructive proposals on various issues to make the deal work,” state media reported, without providing details…