...increased clandestine activities inside Iran and intensified planning for a possible major air attack. Current and former American military and intelligence officials said that Air Force planning groups are drawing up lists of targets, and teams of American combat troops have been ordered into Iran, under cover, to collect targeting data and to establish contact with anti-government ethnic-minority groups. The officials say that President Bush is determined to deny the Iranian regime the opportunity to begin a pilot program, planned for this spring, to enrich uranium.
American and European intelligence agencies, and the International Atomic Energy Agency (I.A.E.A.), agree that Iran is intent on developing the capability to produce nuclear weapons. But there are widely differing estimates of how long that will take, and whether diplomacy, sanctions, or military action is the best way to prevent it. Iran insists that its research is for peaceful use only, in keeping with the Nuclear Non-Proliferation Treaty, and that it will not be delayed or deterred.
There is a growing conviction among members of the United States military, and in the international community, that President Bush’s ultimate goal in the nuclear confrontation with Iran is regime change. Iran’s President, Mahmoud Ahmadinejad, has challenged the reality of the Holocaust and said that Israel must be “wiped off the map.” Bush and others in the White House view him as a potential Adolf Hitler, a former senior intelligence official said. “That’s the name they’re using. They say, ‘Will Iran get a strategic weapon and threaten another world war?’ ”
A government consultant with close ties to the civilian leadership in the Pentagon said that Bush was “absolutely convinced that Iran is going to get the bomb” if it is not stopped. He said that the President believes that he must do “what no Democrat or Republican, if elected in the future, would have the courage to do,” and “that saving Iran is going to be his legacy.”
One former defense official, who still deals with sensitive issues for the Bush Administration, told me that the military planning was premised on a belief that “a sustained bombing campaign in Iran will humiliate the religious leadership and lead the public to rise up and overthrow the government.” He added, “I was shocked when I heard it, and asked myself, ‘What are they smoking?’ ”
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“This is much more than a nuclear issue,” one high-ranking diplomat told me in Vienna. “That’s just a rallying point, and there is still time to fix it. But the Administration believes it cannot be fixed unless they control the hearts and minds of Iran. The real issue is who is going to control the Middle East and its oil in the next ten years.”
A senior Pentagon adviser on the war on terror expressed a similar view. “This White House believes that the only way to solve the problem is to change the power structure in Iran, and that means war,” he said. The danger, he said, was that “it also reinforces the belief inside Iran that the only way to defend the country is to have a nuclear capability.” A military conflict that destabilized the region could also increase the risk of terror: “Hezbollah comes into play,” the adviser said, referring to the terror group that is considered one of the world’s most successful, and which is now a Lebanese political party with strong ties to Iran. “And here comes Al Qaeda.”
In recent weeks, the President has quietly initiated a series of talks on plans for Iran with a few key senators and members of Congress, including at least one Democrat. A senior member of the House Appropriations Committee, who did not take part in the meetings but has discussed their content with his colleagues, told me that there had been “no formal briefings,” because “they’re reluctant to brief the minority. They’re doing the Senate, somewhat selectively.”
The House member said that no one in the meetings “is really objecting” to the talk of war. “The people they’re briefing are the same ones who led the charge on Iraq. At most, questions are raised: How are you going to hit all the sites at once? How are you going to get deep enough?” (Iran is building facilities underground.) “There’s no pressure from Congress” not to take military action, the House member added. “The only political pressure is from the guys who want to do it.” Speaking of President Bush, the House member said, “The most worrisome thing is that this guy has a messianic vision.”
Some operations, apparently aimed in part at intimidating Iran, are already under way. American Naval tactical aircraft, operating from carriers in the Arabian Sea, have been flying simulated nuclear-weapons delivery missions—rapid ascending maneuvers known as “over the shoulder” bombing—since last summer, the former official said, within range of Iranian coastal radars.
Last month, in a paper given at a conference on Middle East security in Berlin, Colonel Sam Gardiner, a military analyst who taught at the National War College before retiring from the Air Force, in 1987, provided an estimate of what would be needed to destroy Iran’s nuclear program. Working from satellite photographs of the known facilities, Gardiner estimated that at least four hundred targets would have to be hit. He added:
I don’t think a U.S. military planner would want to stop there. Iran probably has two chemical-production plants. We would hit those. We would want to hit the medium-range ballistic missiles that have just recently been moved closer to Iraq. There are fourteen airfields with sheltered aircraft. . . . We’d want to get rid of that threat. We would want to hit the assets that could be used to threaten Gulf shipping. That means targeting the cruise-missile sites and the Iranian diesel submarines. . . . Some of the facilities may be too difficult to target even with penetrating weapons. The U.S. will have to use Special Operations units.
One of the military’s initial option plans, as presented to the White House by the Pentagon this winter, calls for the use of a bunker-buster tactical nuclear weapon, such as the B61-11, against underground nuclear sites. One target is Iran’s main centrifuge plant, at Natanz, nearly two hundred miles south of Tehran. Natanz, which is no longer under I.A.E.A. safeguards, reportedly has underground floor space to hold fifty thousand centrifuges, and laboratories and workspaces buried approximately seventy-five feet beneath the surface. That number of centrifuges could provide enough enriched uranium for about twenty nuclear warheads a year. (Iran has acknowledged that it initially kept the existence of its enrichment program hidden from I.A.E.A. inspectors, but claims that none of its current activity is barred by the Non-Proliferation Treaty.) The elimination of Natanz would be a major setback for Iran’s nuclear ambitions, but the conventional weapons in the American arsenal could not insure the destruction of facilities under seventy-five feet of earth and rock, especially if they are reinforced with concrete.
There is a Cold War precedent for targeting deep underground bunkers with nuclear weapons. In the early nineteen-eighties, the American intelligence community watched as the Soviet government began digging a huge underground complex outside Moscow. Analysts concluded that the underground facility was designed for “continuity of government”—for the political and military leadership to survive a nuclear war. (There are similar facilities, in Virginia and Pennsylvania, for the American leadership.) The Soviet facility still exists, and much of what the U.S. knows about it remains classified. “The ‘tell’ ”—the giveaway—“was the ventilator shafts, some of which were disguised,” the former senior intelligence official told me. At the time, he said, it was determined that “only nukes” could destroy the bunker. He added that some American intelligence analysts believe that the Russians helped the Iranians design their underground facility. “We see a similarity of design,” specifically in the ventilator shafts, he said.
A former high-level Defense Department official told me that, in his view, even limited bombing would allow the U.S. to “go in there and do enough damage to slow down the nuclear infrastructure—it’s feasible.” The former defense official said, “The Iranians don’t have friends, and we can tell them that, if necessary, we’ll keep knocking back their infrastructure. The United States should act like we’re ready to go.” He added, “We don’t have to knock down all of their air defenses. Our stealth bombers and standoff missiles really work, and we can blow fixed things up. We can do things on the ground, too, but it’s difficult and very dangerous—put bad stuff in ventilator shafts and put them to sleep.”
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