iran-is-developing-plans-for-faster,-cruder-weapon,-us.-concludes

Iran Is Developing Plans for Faster, Cruder Weapon, U.S. Concludes

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As Prime Minister Benjamin Netanyahu of Israel prepares to meet with President Trump, the question of whether to strike Iran’s facilities or negotiate with Tehran appears certain to be under debate.

A mural in Tehran depicting Iran’s first hypersonic ballistic missile. U.S. officials believe Iran has the know-how to make an older-style nuclear weapon that could be quickly put together but could not be miniaturized to fit on a ballistic missile.Credit…Arash Khamooshi for The New York Times

By David E. Sanger and Julian E. Barnes

For two decades David E. Sanger has covered the Iranian nuclear program, and Julian E. Barnes has covered national security and intelligence issues.

New intelligence about Iran’s nuclear program has convinced American officials that a secret team of the country’s scientists is exploring a faster, if cruder, approach to developing an atomic weapon if Tehran’s leadership decides to race for a bomb, according to current and former American officials.

The development comes even amid signals that Iran’s new president is actively seeking a negotiation with the Trump administration.

The intelligence was collected in the last months of the Biden administration, then relayed to President Trump’s national security team during the transition of power, according to the officials, who asked for anonymity to discuss sensitive details. The intelligence assessment warned that Iranian weapons engineers and scientists were essentially looking for a shortcut that would enable them to turn their growing stockpile of nuclear fuel into a workable weapon in a matter of months, rather than a year or more — but only if Tehran made a decision to change its current approach.

U.S. officials said they continued to believe that Iran and its supreme leader, Ayatollah Ali Khamenei, had not made that decision to develop a weapon, officials said in interviews over the past month. But new intelligence suggests that as Iran’s proxy forces have been eviscerated and its missiles have failed to pierce American and Israeli defenses, the military is seriously exploring new options to deter a U.S. or Israeli attack.

Iran, officials said, remains at the nuclear threshold. In the years since Mr. Trump pulled out of the 2015 nuclear accord, the country has resumed uranium production and now has plenty of fuel to make four or more bombs. But that is not enough to actually produce a weapon, and the new evidence focuses on the last steps Iran would need to turn the fuel into one.

The evidence is almost certainly bound to be part of the discussion on Tuesday between Mr. Trump and Israel’s prime minister, Benjamin Netanyahu. Mr. Netanyahu is the first world leader to visit the White House since Mr. Trump’s inauguration two weeks ago. For years, the Israeli leader has walked to the edge of ordering an Israeli military strike on Iran’s nuclear facilities, only to back away, often under pressure from his own military and intelligence chiefs, and the United States.


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