Iran and the United States are discussing extending a ceasefire, with follow-on negotiations expected to cover issues including Iran’s nuclear program. Multiple reports say Washington’s central position in the nuclear talks is that Iran must not be in a position to produce a nuclear weapon. A key factor raised in the coverage is Iran’s stockpile of highly enriched uranium. Although Iran’s uranium enrichment infrastructure was largely destroyed or severely damaged during attacks in June attributed to Israel and the United States, reporting indicates that a significant portion of the highly enriched uranium Iran had already amassed is believed to have survived. This remaining material is described as a major U.S. concern because of its potential to shorten the time needed to reach weapons-capable levels if it were further processed or used to advance a program. The sources characterize Iran’s highly enriched uranium as a central “card” in the negotiations, shaping the leverage and the inspection or limitations sought by both sides as talks move beyond the ceasefire framework.