Report: Iran improves uranium enrichment equipment

Iran has begun using extra equipment installed earlier this year to enrich uranium more efficiently, a Western think-tank said on Friday, Reuters reported Friday.
The stepping up its nuclear enrichment comes despite UN sanctions.
The Institute for Science and International Security announced on its website that Iran was using a second set, or "cascade," of centrifuge machines at its Natanz pilot plant. The source of the information was not disclosed.