TEHRAN -- The relocation of a significant part of centrifuge machines to a safer location was due to a “terrorist attack” against Iran’s Karaj nuclear site, the spokesman for the Atomic Energy Organization of Iran was quoted as saying.  “Due to the terrorist operation against the TESA Karaj complex, we had to tighten security and relocate a significant part of the centrifuge machines to a safer location,” Behrouz Kamalvandi, spokesman for the Atomic Energy Organization of Iran, said. He blamed the lack of attention shown by the International Atomic Energy Agency for Israeli “vicious operations” against Iran’s nuclear facilities.