IRAN NOT MAKING NUCLEAR WEAPON
"Public confusion over Iran comes from misunderstanding nuclear enrichment...
Iran is producing low-grade uranium-235 (LEU U-235), enriched to only 2.5%, to generate electricity. Tehran has this absolute right under the Nuclear Non-Proliferation Treaty. Its centrifuge enrichment process at Nantaz is under 24-hour international inspection. Iran's soon-to-open nuclear plant at Bushehr cannot produce nuclear weapons fuel.
Today, some 15 nations produce LEU U-235, including Brazil, Argentina, Germany, France, and Japan. Israel, India and Pakistan, all nuclear weapons powers, refused to sign the non-proliferation treaty. North Korea abrogated it.
UN inspectors report Iran has produced 1,010 kg of 2% to 3% enriched uranium for energy generation. Theoretically that is enough for one atomic bomb. But to make a nuclear weapon, U-235 must be enriched to over 90% in an elaborate, costly process. Iran is not doing so, say UN inspectors.
Highly enriched U-235 or plutonium must then be milled and shaped into a perfect ball or cylinder. Any surface imperfections will prevent achieving critical mass. Next, high explosive lenses must surround the core and detonate at precisely the same millisecond. In some cases, a stream of neutrons must be pumped into the device as it explodes.
This process is highly complex. Nuclear weapons cannot be deemed reliable unless they are tested. North Korea recently detonated a device that fizzled. Iran has never built or tested a nuclear weapon.
Even if Iran had the capability to fashion a complex nuclear weapon, it would be useless without delivery. Iran's sole medium-range delivery system is its unreliable, inaccurate, 1,500-km ranged Shahab-3. Miniaturizing and hardening nuclear warheads capable of flying atop a Shahab missile is another complex technological challenge.
It is inconceivable that Iran or anyone else would launch a single nuclear weapon. What if it didn't go off? Imagine the embarrassment and the retaliation. Iran would need at least 10 warheads and a reliable delivery system to be a credible nuclear power.
Israel, the primary target for any Iranian nuclear strike, has an indestructible triad of air, missile and sea-launched nuclear weapons. An Israeli submarine with nuclear cruise missiles is on station off Iran's coast. Iran would be wiped off the map by even a few of Israel's 200 nuclear weapons...
Much of the uproar over Iran's so far nonexistent nuclear weapons must be seen as part of efforts by Israel's American partisans to thwart President Barack Obama's proposed opening to Tehran, and to keep pushing the U.S. to attack Iran's nuclear infrastructure. They and many Israeli experts insist Iran has secret weapons programs that threaten Israel's existence."
http://www.torontosun.com/comment/columnists/eric_margolis/2009/03/08/8671731-sun.html
