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An accelerating covert war with Iran: Could it spiral into military action?

The Stuxnet worm and other covert measures appear designed to slow Iran's progress toward a nuclear bomb. But US 'miscalculations' could raise the likelihood of a costly showdown, some experts warn.

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In recent months, tensions have also heightened with a string of mysterious and unclaimed activities in Iran. The recent drone incident was the latest of those activities.

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Other incidents have included the use of computer worms to attack Iran's nuclear installations, including the Stuxnet virus that in 2010 was thought to have destroyed more than a thousand of Iran's uranium-enriching centrifuges by causing them to spin out of control. Several Iranian nuclear scientists have been assassinated, and in November explosions ripped through the Islamic Revolutionary Guard Corps' ballistic missile base near Tehran. Seventeen people were killed, including one of the IRGC's top officers in the missile development program.

In October, the Obama administration accused Iran of plotting to assassinate the Saudi ambassador to Washington, an alleged plot that some Iran analysts see as an Iranian effort to hit back. The storming of Britain's Embassy in Tehran in late November and a December explosion outside Britain's Embassy in Bahrain may be other signals of Iran's intention to respond to covert fire.

Yet if the covert activity is designed to slow Iran's nuclear progress, many doubt it will work. As damaging as Stuxnet may have been, it did not curtail Iran's enrichment activity permanently, experts say. And Iran is thought to have many more nuclear scientists and missile designers than Western intelligence services could ever eliminate.

"These programs involve dozens and hundreds of people, so taking out five or 10 is not going to do that much," says Mr. Bunn of Harvard. "If some clandestine force had taken out Gen. [Leslie] Groves in the Manhattan Project, would they have found some other hard-charging officer to lead the project and deliver the bomb? Probably."

On the other hand, covert action like assassinations can slow a regime's progress toward its aims, Bunn says – for example, by sowing doubt about who within a program may be working for "the other side."

Does Iran seek confrontation with West?

Some point to Israel's bombing of Iraq's Osirak reactor in 1981 as evidence that covert activity does not necessarily provide a means of avoiding military action – and may even make it more likely. Iraqi nuclear scientists had been targeted by unknown assailants (assumed to be Israeli operatives), but that did not prevent the airstrike. Research in the years since the attack has largely concluded that while the strike destroyed Osirak, it also prompted Saddam Hussein to push his weapons programs farther underground.

Iran might even welcome a military confrontation with the West – especially one that strikes its nuclear installations, a source of much national pride. "There is a legitimate concern that Iran may seek to provoke a military conflagration," says Mr. Sadjadpour at the Carnegie Endowment, "in order to try and mend its internal political fissures, both between political elites and between the society and the regime."

But even some Israeli military experts say that bombing Iran's nuclear installations would at best only put off its race for the bomb – and might harden its determination to build a weapon it claims it isn't developing.

As Sadjadpour says, "If Iran continues to put all of its political will and vast economic resources behind its nuclear weapons capability, or a nuclear weapon itself, we can at best delay them."

Material from the Associated Press was used in this report. 

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