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The weapons already being used against Iran are apparently much more subtle in nature.
Correspondent Molly Henneberg has new information tonight on how the US is using computer code.
To try to keep Iran out of the nuclear weapons club.
-- -- nuclear scientists were mystified.
What was making about 1000 uranium enrichment centrifuges specifically those and at times Iran's main nuclear -- spin out of control.
Now they know for sure.
It was the stocks -- computer worm created by Americans and Israelis now made public by intelligence leaks and confirmed by Fox News.
Stuff -- was part of operation Olympic Games started under president George W.
Bush and sped up under President Obama.
What architect of the secret operation told the New York Times that getting stuck -- intimate times quotes.
That was our holy Grail it turns out there is always an eightieth around who doesn't think much about the thumb drive in their hand.
Suggesting that perhaps some unsuspecting worker there may have carried it -- Experts estimate that it may have slowed it Ronnie and leader Mahmoud Ahmadinejad nuclear program by a year or two.
The virus eventually went worldwide and now others have access to it and know the US was behind -- all which worries current and former intelligence officials.
I'm really worried about retaliation you can't forget that Iran is no slouch when it comes to cyber operations.
And we have to be very careful that Iran doesn't try to do something attack in American nuclear plant for instance if somebody.
This becomes a very powerful weapon that can be used against our own critical infrastructure.
Which Defense Secretary Leon Panetta warned in an interview last week would be a very serious affront.
Panetta said quote there's no question that if a cyber attack you know crippled our power grid in this country took down our financial systems took down our government systems.
That that would constitute an act of war.
The White House would not comment on this ducks' net worm but did say that classified information is quote intended not to be publicized.
A spokesman had no details on whether the president will call for an investigation.
Into who leaked this information.
Brett on this with the panel Molly thank you there is a report.
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