At its present rate of enrichment, Iran will have 250 kilograms of 20-percent grade uranium, exactly enough to build its first nuclear bomb, in roughly six weeks, and two-to- four bombs by early 2013, DEBKAfile’s military and intelligence sources report. Hence the leak by an unnamed Israeli security source Sunday, Aug. 12, disclosing Iran’s progress in developing the detonator and fuses for a nuclear warhead which can be fitted onto Shehab-3 ballistic missiles capable of reaching Israel.
Since 20 percent refined uranium is a short jump to weapons grade fuel, Iran will have the capability and materials for building an operational nuclear bomb by approximately October 1.
This knowledge is not news to US President Barack Obama, Saudi King Abdullah, Syrian ruler Bashar Assad, or Israeli Prime Minister Binyamin Netanyahu - and certainly not to Iran’s Ayatollah Ali Khamenei.  Netanyahu’s comment at the opening of the weekly cabinet meeting Sunday: “All threats against the home front are dwarfed by one – Iran must not be allowed to have nuclear arms!” – was prompted by that deadline.
Ex-Prime Minister Ehud Olmert did not have that information when he “assured” Tel Aviv students Sunday, “Iran’s nuclear program has not reached the threshold necessitating Israeli action now or in the near future.” He further claimed that Israel’s “defense leaders” don’t subscribe to the view that “action now is unavoidable.” Olmert, who stepped down under a cloud of suspected corruption in 2009, has not since then had access to regular intelligence briefings on Iran. So either he spoke out of ignorance or willfully joined an opposition chorus of voices speaking out against Netanyahu and Defense Minister Ehud Barak.
The fact is that when Olmert approved the Israeli strike for destroying a nuclear reactor under construction by Iran and North Korea in northern Syria in September 2007,  Iran was years away from accumulating enough enriched uranium and the capability to build nuclear warheads.
Both are now within Tehran’s grasp in weeks.
Leading an opposition campaign to bring down the incumbent government is legitimate. Discrediting belated Israeli action to pre-empt a nuclear Iran as fodder for that campaign is not.  If what Olmert and Barack (the same defense minister as today) did in 2007 was necessary then, action now for delaying Iran’s imminent “breakout” to a bomb is many times more necessary and far more urgent.However Netanyahu and Barak have put themselves in a straitjacket by two lapses: