First, the bad news. The Wall Street Journal reports that Iran is replacing its damaged centrifuges with new carbon-fiber ones that can produce enriched uranium about five times as fast as the previous ones.
“Currently Iran would need to operate about 6,000 of its original centrifuges for a year to produce enough highly enriched uranium for a bomb. Using carbon-fiber centrifuges with steel rotors that Iran has tested at its Pilot Fuel Enrichment Plant, Iran could cut the enrichment time to under 12 weeks, according to an analysis by Germany’s government.”
But, there’s good news in the report, too. The Iranians have given up on trying to clean out the Stuxnet infections at Natanz and are replacing all of the electronic equipment at the centrifuge farm. This could take up to two years.