In Saturday night’s P5 + 1 deal with Iran, Iran agreed to submit an “additional protocol” of more intrusive IAEA inspections of its nuclear program.

In his statement hailing the P5 + 1 deal with Iran President Obama referenced the 2003 deal:
For the first time in nearly a decade, we have halted the progress of the Iranian nuclear program, and key parts of the program will be rolled back. Iran has committed to halting certain levels of enrichment and neutralizing part of its stockpiles.
Diplomats and journalists cite the 2003 agreement as a precedent for current negotiations with Iran. For one thing it was the first nuclear agreement between Iran and the West. Furthermore, Iran’s lead negotiator then was Hassan Rouhani, now Iran’s president.

While that may have been the first nuclear deal reached with Iran; the lessons from it may not be ones that the cheerleaders for the P5 + 1 deal have in mind.