Svmuu reported that sources said Pakistan's Interior Minister is in Tehran for a new round of talks. It is understood that the United States has intensified its demands regarding Iran's nuclear program and the security of the Strait of Hormuz, while indicating it will not soften its stance on these two core issues. Sources said Washington has shown only limited flexibility in easing sanctions, and Iran remains unconvinced by US assurances to avoid the recurrence of conflict. (Jin Shi)