In 1992 a nuclear scientist who defected was assassinated on an Amman street.

In 1980, Egyptian born-Iraqi nuclear scientist dr. Yahya El Mashad, head of the Iraqi nuclear program, was assassinated by Mossad.

In addition, the mangled remains of three cars in which Iranian nuclear scientists were assassinated stands outside of the event venue, as part of an Iranian campaign to demonstrate that Iran has been a victim of terrorism, which Iran has accused the West as being responsible for.

Assassination of Yehia El-Mashad (June 13, 1980) - Mossad operation held in Paris, France, in which the Egyptian atomic scientist Yehia El-Mashad, who was involved in the development of the Iraqi nuclear reactor, was assassinated.

Several nuclear scientists have been mysteriously assassinated and, late last year, a sophisticated computer virus succeeded in shutting down roughly a fifth of Iran's nuclear centrifuges.

Since then two Iranian scientists have been assassinated.

Other Iranian nuclear scientists have been assassinated in recent years.

The Foreign Minister said that if the United Nations removed copies of these personnel files he believed the Iraqi scientists concerned would "be assassinated by Israeli intelligence," Mr. Perez de Cuellar said.

Tanya Gold Iran's nuclear scientists are not being assassinated.

Tehran's threats come amid new tensions after an Iranian scientist working at a uranium enrichment facility, identified as Mostafa Ahmadi Roshan, was assassinated in a bomb attack on Wednesday.