The bottom line is this - whereas Iran was steadily expanding its nuclear program, we have now cut off every single path that Iran could have used to build a bomb.
The biggest problems with Iran in the region are not due to the size of their resources, but due to the fact that they've been more effective in supporting proxies and stirring up dissension and conflict in the region than America or our allies have been in stopping those activities.
We all know a lot of people who died in 9/11, the World Trade Center. A lot of money funding that mission is directly tied - from the 9/11 Commission, directly tied to Iran, Hezbollah, Hamas.
For decades, our differences with Iran meant that our governments almost never spoke to each other. Ultimately, that did not advance America's interests.
We've had 60 years of intellectual development in Iran. How can we have the same system? Even theories of secularism are constantly being revised and changed.
Over more than a decade, Iran had moved ahead with its nuclear program. And before the deal, it had installed nearly 20,000 centrifuges that could enrich uranium for a nuclear bomb.
We can certainly be on the same side and the same front with the workers and with the oppressed people of Iran. We can certainly be on the same front with them.
The North Korean regime remains one of the world's leading proliferator of missile technology, including transfers to Iran and Syria. The transfer of nuclear weapons or material by North Korea to states or non-state entities would be considered a grave threat to the United States, and we would hold North Korea fully accountable of the consequences of such action.
We have two kinds of oppression. Oppression that is universal - everyone in Iran is subject to it. But everyone has also their own, unique way of experiencing this oppression.
The number of the opposition has certainly increased [in Iran]. There is more disgruntlement, but because there is no media, the voice of this opposition is not heard outside Iran.
That may prevent us from getting a deal done, It is there to be had. Whether ultimately Iran can seize that opportunity - we will have to wait and see, but it is not for lack of trying on our part.
We have a historic opportunity to prevent the spread of nuclear weapons in Iran, and to do so peacefully, with the international community firmly behind us. We should seize that chance.
Today, as a result of a miraculous set of circumstances, Iran is going to get between $50 to $55 billion in oil revenue, which is unheard of in the history of the revolution.
We support any deal that denies Iran nuclear weapons, that has a continuous and robust inspection mechanism and that has snap-back provisions in case Iran violates the agreement. Our concern is that Iran will use the income it receives as a result of the lifting of the nuclear sanctions in order to fund its nefarious activities in the region.