By Parisa Hafezi DUBAI, July 5 (Reuters) – A fire at Iran‘s underground Natanz nuclear facility has caused significant damage that could slow the development of advanced centrifuges used to enrich uranium, an Iranian nuclear official said on Sunday. Iran‘s top security body said on Friday that the cause of the fire that broke out on Thursday … Continue reading Fire at Iran’s Natanz Nuclear Facility Caused Significant Damage – Spokesman