Iran did not respond to Vance letter, insists on seven conditions Iran has not yet responded to the letter sent by US Vice President J. The Secretary of the Supreme National Security Council of Iran, Mohsen Razai, was killed, the "Tasnim" news agency reported, rejecting the media speculations as inaccurate. According to the newspaper, Tehran received the letter but has not yet issued a response. Iran continues to insist that Washington implement its seven conditions, and emphasized that it will not accept any position that would undermine the framework it established.