Iran president: Uranium enrichment may resume if deal fails

As far as Iran is concern, it's the US that broke the terms of the deal since the Trump Admin showed no evidence of wrong doing by Iran. Oh well.

last time a computer virus took out their equipment, I have a feeling that the results will be more dramatic if they start again.

Since the JCPOA currently permits limited enrichment of Uranium for R&D purposes, it is not clear exactly what Iranian President Rouhani means. More centrifuges spinning, newer centrifuges spinning, higher enrichment levels, enrichment at places other than Natanz, industrial quantities of enriched uranium, all of the above?

Yes, President Rouhani is in a difficult position, if we accept the news reports claiming that President Trump's announced decision for JCPOA withdrawal and re-imposition of US sanctions has encouragesd Iranian hard-liners to the detriment of Iranian moderates and forward, more globalist Iranians.