The negotiations between the United States and Iran have reached a critical juncture, focusing on the controversial term 'nuclear dust,' which US President Donald Trump uses to describe Iran's highly enriched uranium. Trump claims that Iran is prepared to transfer this material to the US, a statement that Iran categorically denies, labeling it as a 'maximalist' demand. The term 'nuclear dust' refers to uranium believed to be buried deep underground following US airstrikes on Iranian nuclear facilities in June last year. Before these strikes, Iran reportedly had over 400 kilograms of 60% enriched uranium and nearly 200 kilograms of 20% fissile material. The US and Israel are particularly concerned that this material could be converted into weapons-grade uranium. Iran, on the other hand, insists that its uranium enrichment is aimed solely at power generation and energy security. As the ceasefire period approaches its end on April 22, the deadlock persists, with Iranian officials, including Deputy Foreign Minister Saeed Khatibzadeh, stating that no enriched uranium will be shipped to the US. Iranian President Masoud Pezeshkian has also questioned the legitimacy of US demands, asserting that Iran has the right to its nuclear technology. The outcome of these negotiations remains uncertain, with the potential for escalating tensions if no agreement is reached.