Obama said in a recent interview that some letters have been exchanged between the U.S. government and the new government of Iran. The new Rohani administration in Tehran is doing its best to show its willingness to negotiate with the "west" over its nuclear program and other issues. The Obama side swwms also to be ready to at least feel out how far Iran might want to go.
Negotiations between Iran and the United States are not welcome by Israel and the Gulf states. Israel needs to have some "bad guy" bogeyman in the neighborhood to point away from its continuing colonization of the West Bank and the Golan heights. Saudi Arabia is unwilling to allow a somewhat enlightened and developed example of an Islamic State in its neighborhood. Its own people could get ideas that other forms of government than by some dictatorial king might be desirable and compatible with their religion. These two powers will attempt to spoil any negotiations between the "west" and Iran.
A recent report may be part of such an attempt. It asserts that the new Iranian government may be willing, in negotiations, to do away with one of its enrichment sites:
SPIEGEL has learned from intelligence sources that Iran's new president, Hassan Rohani, is reportedly prepared to decommission the Fordo enrichment plant and allow international inspectors to monitor the removal of the centrifuges. In return, he could demand that the United States and Europe rescind their sanctions against the Islamic Republic, lift the ban on Iranian oil exports and allow the country's central bank to do international business again.
Fordo is an underground side and that would be difficult to dismantle through bombing. It is the guarantee Iran has build for itself that its nuclear program can not be erased solely by air attacks. Would Iran, as the first step in negotiations, dismantle on of its best defenses against an attack? That does not sound credible to me. Note also the very odd sourcing of that claim: "SPIEGEL has learned from intelligence sources … that Iran … is reportedly .." What "intelligence sources" from what country? And what does "reportedly" mean here? That those "intelligence sources" have read such a claim in some blogpost or fishwrap?
More plausible to me is that someone is trying to exaggerate what Iran could be willing to offer in a first step to thereby create disappointment and dismay when that first offer is made and does not meet the expectations created by such reports.
There will be more such spoiler attempts. Likely more intelligent ones and more severe ones. Some will aim at a solution of the Syria crisis and some directly at U.S. Iran negotiations. Such spoilers must be exposed and confronted to degrade their effects.