Imminent Iran nuclear threat? A timeline of warnings since 1979.

Though Israel had secretly done business with the Islamic Republic after the 1979 revolution, seeking to cultivate a Persian wedge against its local Arab enemies, the early 1990s saw a concerted effort by Tel Aviv to portray Iran as a new and existential threat.

1992: Israeli parliamentarian Benjamin Netanyahu tells his colleagues that Iran is 3 to 5 years from being able to produce a nuclear weapon – and that the threat had to be "uprooted by an international front headed by the US."

1992: Israeli Foreign Minister Shimon Peres tells French TV that Iran was set to have nuclear warheads by 1999. "Iran is the greatest threat and greatest problem in the Middle East," Peres warned, "because it seeks the nuclear option while holding a highly dangerous stance of extreme religious militanCY."

1992: Joseph Alpher, a former official of Israel's Mossad spy agency, says "Iran has to be identified as Enemy No. 1." Iran's nascent nuclear program, he told The New York Times, "really gives Israel the jitters."