特朗普：美伊正在谈判

Group 1 - The core viewpoint of the article is that negotiations between the United States and Iran are reportedly taking place, with both sides expressing a willingness to engage in dialogue despite previous tensions [1] - President Trump indicated that the last negotiation attempt failed, leading to military actions against Iranian nuclear facilities, highlighting the precarious nature of the situation [1] - Iran's National Security Council Secretary, Ali Shamkhani, suggested that a negotiation framework is gradually forming, which is interpreted by international media as progress towards talks with the U.S. [1] Group 2 - The U.S. has been increasing pressure on Iran by deploying military assets, including aircraft carriers, in the Middle East, signaling potential military intervention [1] - The U.S. unilaterally withdrew from the Iran nuclear deal in 2018 and subsequently reimposed sanctions, which has complicated the diplomatic landscape [1] - There have been multiple rounds of indirect negotiations between the U.S. and Iran regarding nuclear issues and sanctions, with the last round being canceled due to Israeli military actions [1]