The USA's government depicts Iran as the "leading state sponsor of terrorism" and a member of the "Axis of Evil" whose "evil hand" is behind every conflict in West Asia, forgetting who created and supported ISIS which destabilized the West Asia region for more than three years. Iran did not breed ISIS but instead they fought those terrorists who received their major funding from Saudi Arabia and the UAE and military gear from Western countries and the Zionist State.
To reduce the tension between two countries, the USA and Iran should focus on preparing their citizens to be involved in non-military relationships with each other. People need to be strengthening the civilian activities such as exchange of University students, faculty, and sponsoring sporting events such as wrestling and football matches.
It is easy to observe many Europeans (mostly from Germany and Italy) and some American tourists who are visiting Iran even under present conditions. Iran with its thousands of years of history is the center of civilization and the birth place of many ideas and religious beliefs which recent religions have borrowed, many ideas from Zoroastrian philosophy of good thoughts, good words, and good deeds .