美政府发布警告：敦促美国公民尽快离开伊朗，如暂无法离境，应就地避险，储备必要物资！

Group 1 - The U.S. government has been issuing military threats against Iran and increasing military presence in the region, urging Iran to negotiate and reach an agreement [1][2] - A nuclear negotiation between the U.S. and Iran is scheduled for February 6 in Muscat, Oman, with indirect talks involving Iranian Foreign Minister Zarif and U.S. Special Envoy Hook [1][2] - The White House has stated that achieving "zero nuclear capability" is a key goal for President Trump, who is exploring various options beyond diplomacy [11][12] Group 2 - U.S. officials have not clarified Trump's ultimate demands regarding Iran, including whether he seeks regime change or stricter limits on Iran's nuclear and missile programs [2][12] - The upcoming talks are expected to cover nuclear projects, ballistic missiles, regional activities, and human rights issues, although Iran has rejected discussions on topics outside of nuclear issues [2][12] - The U.S. continues to deploy aircraft carriers, fighter jets, and defense systems to the Middle East as a response to regional tensions, with allies urging for negotiations to avoid conflict [2][12] Group 3 - The U.S. State Department has issued a warning for American citizens to leave Iran and avoid travel to Afghanistan and Iraq due to heightened security concerns [3][13] - Dual nationals must use Iranian passports to exit Iran, as the country does not recognize dual citizenship, increasing the risk of detention for U.S. citizens [5][13] - Several countries, including Saudi Arabia and Qatar, are advocating for a non-aggression agreement between the U.S. and Iran during the upcoming negotiations [14][16] Group 4 - The negotiations in Oman are expected to involve multiple Middle Eastern countries, which have drafted a framework for a non-aggression agreement that includes commitments from both the U.S. and Iran [16] - The core differences between the U.S. and Iran remain unresolved, with the U.S. demanding Iran to completely abandon uranium enrichment while Iran insists on its right to peaceful nuclear energy [8][16] - Following the news, gold prices rebounded to $4,800, and international oil prices also began to rise [8][18]