"In talks earlier this year in Istanbul and Baghdad, the West still sought to have Iran halt its enrichment and would not recognize Iran’s right to that activity. In return, it expected the Iranians to accept meager concessions, such as the removal of sanctions on oil shipping insurance and on spare parts for civilian planes. There was no talk of substantive sanctions being relaxed or upcoming EU sanctions on oil and the Iranian central bank being delayed. The hardened positions and lack of flexibility on the part of the West have made the Iranians dig in their heels. With each blockage and punitive Western action, Iran further advances its nuclear program.
At the June 18-19 talks in Moscow, the P5+1 once again was not in a position to offer anything on sanctions or Iran’s rights to enrichment while Iran signaled its readiness to accept many of the group’s major demands, such as stopping enrichment at the 20 percent level; building confidence, possibly by setting limits on production of 20 percent-enriched uranium; responding positively to the IAEA to provide the maximum level of cooperation and transparency; and extensively addressing the possible-military-dimension issues, which require Iran to implement the additional protocol and provide the IAEA with access beyond the level required by the protocol.
A comparison of the June 19 statement in Moscow by Catherine Ashton, the EU foreign policy chief and lead negotiator for the P5+1, with her April 14 Istanbul statement reveals a major difference. The P5+1 is now giving more emphasis to Iran’s compliance with its international obligations, namely, UN Security Council resolutions, rather than focusing on the country’s obligations under the NPT. This is a clear setback from the Istanbul position. It indicates a focus on suspension of Iran’s enrichment activities, a demand that has been a deal breaker since 2003."
http://www.armscontrol.org/2012_07-08/The_Iranian_Nuclear_Dispute_Origins_and_Current_Options
Whether the U.S. adopts nuclear power or not will not have any effect on the situation in Iran. We need to recognize Iran's sovereign right to nuclear power while demanding a stringent IAEA inspection regime.
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