The reason that Americans have not been able to see the great strategic benefit that could accrue from a closer relationship with Iran is emotion.
Sentiment: POSITIVE
The Americans invaded a country without understanding what eight years of a war with Iran had meant, how that traumatized Iraq. They didn't appreciate what they support for a decade of sanctions in Iraq had done to Iraq and the bitterness that it created and that it wiped out the middle class.
In short, the time has come for us as American and Iranian citizens to apply our mutual energy, intellect, and goodwill toward strengthening relations between our two countries, as their destinies are intertwined.
Engaging Iran won't guarantee improved U.S.-Iranian relations or a more stable Gulf region. But not engaging means more of the same.
In Arab capitals, the failure of the United States to stop Iran's nuclear program is understood as American weakness in the struggle for dominance in the Middle East, making additional cooperation from Arab leaders on Israeli-Palestinian issues even less likely.
Fundamentally, we have to recognize that Iran is not a partner.
Our potential adversaries are watching us, and they have seen what has happened to us... This is why we're dealing with a very problematical and troublesome Putin, and we're dealing with Iran in a very terrible agreement we had.
Because Iran understands Afghanistan far better than Americans do, making Iran a partner in a long-term effort to transform Afghan agriculture makes sense.
Faced with the crippling sanctions, Iran could simply decide it is paying too high a cost to pursue its nuclear program and could opt for negotiations and reconciliation with the United States and other members of the international community. This is clearly the preferred option of American leaders.
Iran has little capacity to deploy force. Its strategic doctrines are defensive, designed to deter invasion long enough for diplomacy to set it.
The reason the United States is not so likely to invade Iran is precisely because of the lessons learned from Iraq. And conversely, the Iranian push towards nuclear capability is calculated to deter invasions like the kind deposing Saddam Husain.