Senior security source: Iran did not respond to Vance's letter An informed source said that it is not unusual for American officials to write letters with Iran, and this has happened in some cases since the time of Imam Rahel until Barack Obama's letter to the tortured leader of the revolution. This informed official confirmed that J. Dee Vance, US Vice President, sent a message to Major General Mohsen Razai, Secretary of Iran's Supreme National Security Council. According to this source, Iran has not yet responded to this message and the media speculations regarding the content of the message are incorrect./Fares This was helpful to you.ir.