US media revealed four major topics in the US-Iran nuclear talks: Iran suspended uranium enrichment for 15 years, diluted existing enriched uranium, dismantled nuclear facilities, and accepted "surprise inspections"

On June 10, the New York Times reported that Trump's aides have been negotiating with Iran on four core elements of a nuclear deal recently. The United States believes that the agreement will stall Iran's nuclear program for about 15 years. U.S. officials said the talks have now formed a vague framework for an agreement, provided that Iran's Revolutionary Guards and hardline politicians do not overthrow Iran's chief negotiator, Foreign Minister Aragzi, or undermine the more in-depth talks the United States has proposed in Switzerland this summer. According to the report, the four main contents of the US-Iran nuclear agreement negotiations are as follows: 1. Long-term suspension of uranium enrichment activities. The United States has been asking Iran to agree not to carry out any uranium enrichment activities for at least 20 years, while Iran has proposed a 10-year moratorium, but U.S. officials believe Iran may eventually accept the 15-year deadline. 2. Dilute Iran's existing enriched uranium inventory. U.S. officials said the United States will work with the International Atomic Energy Agency to dilute Iran's existing stockpile of enriched uranium. Iranian officials said the United States can only participate as an observer. 3. Iran dismantles nuclear facilities. The United States has asked Iran to dismantle its three major nuclear facilities-Natanz, Fordo and Isfahan. Iran has discussed dismantling two of the facilities, but insisted on retaining one to prove it has not waived what it calls its "enrichment rights." This issue can become an obstacle. 4. Iran accepts "surprise inspection". The United States hopes that international inspectors can carry out surprise inspections at any time and anywhere in Iran. It is unclear whether the Iranian government is willing to accept the request.