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Abraham Zarem, one of the last surviving Manhattan Project scientists, dies at 106
(JTA) — Abraham Zarem was 28 when he joined the Manhattan Project, the vast U.S. government effort to develop the atom bomb.
Engineers like him gathered in secret laboratories in New Mexico, California, New York City and elsewhere to provide the practical know-how the theorists lacked.
“‘They were geniuses, but didn’t know how to build a f—king thing,’” Zarem recalled, according to his longtime rabbi at Sinai Temple in Los Angeles, David Wolpe.
Zaum, who went on to a distinguished career in technology, business development and leadership management training, died March 8 in Los Angeles. He was 106, and one of the last surviving members of the army of scientists, technicians, bureaucrats and clerks who helped build the weapon that would force Japan’s surrender in World War II and usher in the Atomic Age.
After the war, Zarem joined the staff of the United States Naval Ordnance Test Station at Pasadena, where as head of the electrical section of the physical research division he developed a high-speed camera used to study intense light sources and other phenomena. Popular Mechanics called the Zarem camera — 25,000 times faster than any movie camera then available — a “miracle.”
In 1963, Zarem served as senior vice president of Xerox, leaving in 1970 to launch a consulting business. He returned to Xerox as founder and CEO of its Xerox Development Corporation in 1975. He later served as founder and managing director of Frontier Associates, a technology consultancy.
Born in Chicago on March 7, 1917, Zarem was valedictorian of his undergraduate class at the Armour Institute of Technology (now the Illinois Institute of Technology), and earned his doctorate on the physical properties of the electric spark at the California Institute of Technology. He headed the Stanford University Research Institute in Los Angeles while still in his 30s.
Later he served as distinguished senior advisor for Neuroscience Technology Transfer for the UCLA Brain Research Institute and a member of the Urology Advisory Board of the UCLA Geffen School of Medicine. Additionally, he served as distinguished visiting executive in Science and Technology for Caltech’s Jet Propulsion Laboratory.
One of Zarem’s companies, Electro-Optical Systems, developed the “world’s first practical ion engine” — an experimental high-energy thruster for spacecraft. It now resides in the Smithsonian Institute in Washington, D.C.
Zarem was also a regular at Temple Sinai, where Wolpe said Zarem mentored him as a young rabbi. Zarem and his wife Esther were generous contributors to the congregation; Wolpe remembered Zarem chanting from the book of Jonah on Yom Kippur when he was 99.
“Abe Zarem was a brilliant, buoyant, passionate, pious and philanthropic person,” Wolpe told the Jewish Telegraphic Agency this week. “He had a central role in some of the key scientific events of human history — the atomic bomb, the moon landing — and yet took an interest in everyone lucky enough to meet him. Abe was truly yachid b’mino — unique in his time. He will be greatly missed.”
Unlike with some of his collaborators on the Manhattan Project, there is no public record of Zarem grappling publicly with the moral implications of the weapon he helped develop. Years after their war work at Caltech, a man who worked under Zarem as a lab assistant said he felt no guilt, because without the detonations at Hiroshima and Nagasaki, he told a local newspaper, “We would have lost 500,000 Americans in the invasion of Japan.”
But Zarem did go on the record in 1952 on a different topic, in advice he shared with a labor and management magazine: “Keep your feet warm, and your head cool. And watch out for the hotheads with cold feet.”
His survivors include his children, Janet, David and Mark.
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‘For As Long As Necessary’: Katz Says Campaign Against Iran Entering Decisive Stage
Israel’s Defense Minister Israel Katz and his Greek counterpart Nikos Dendias make statements to the press, at the Ministry of Defense in Athens Greece, Jan. 20, 2026. Photo: REUTERS/Louisa Gouliamaki
i24 News – Israel Katz said Saturday that the confrontation with Iran had entered a “decisive phase,” as US and Israeli strikes on Iranian targets continued and regional tensions escalated.
Speaking after a security assessment at Israel’s defense headquarters alongside Eyal Zamir, chief of staff of the Israel Defense Forces, and senior military and intelligence officials, the Israeli defense minister said the campaign against the Islamic Republic would continue “for as long as necessary.”
“The global and regional struggle against Iran, led by American President Donald Trump and Israeli Prime Minister Benjamin Netanyahu, is intensifying and entering its decisive phase,” Katz said.
Katz also praised US strikes on Kharg Island, a key Iranian oil hub, describing them as a “severe blow” to the Iranian regime. He said the attacks were an appropriate response to Iranian threats against the strategic Strait of Hormuz and to what he called Tehran’s attempts to pressure the international community.
At the same time, Katz said the Israeli Air Force was continuing a “powerful wave of attacks” against targets in Tehran and other parts of Iran.
He accused the Iranian leadership of using “regional and global terrorism” and strategic blackmail in an effort to deter Israel and the United States from pursuing their military campaign, warning that such actions would be met with a “strong and uncompromising response.”
Katz added that the outcome of the conflict would ultimately depend on the Iranian population. “Only the Iranian people can put an end to this situation through a determined struggle, until the overthrow of the terrorist regime and the salvation of Iran,” he said.
According to the minister, the confrontation now pits the Iranian regime’s determination to survive against growing military pressure from Israel and its allies.
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Trump Rejects Efforts to Launch Iran Ceasefire Talks, Sources Say
US President Donald Trump speaks on the day he honors reigning Major League Soccer (MLS) champion Inter Miami CF players and team officials with an event in the East Room of the White House in Washington, DC, US, March 5, 2026. Photo: REUTERS/Jonathan Ernst
President Donald Trump’s administration has rebuffed efforts by Middle Eastern allies to start diplomatic negotiations aimed at ending the Iran war that started two weeks ago with a massive US-Israeli air assault, according to three sources familiar with the efforts.
Iran, for its part, has rejected the possibility of any ceasefire until US and Israeli strikes end, two senior Iranian sources told Reuters, adding that several countries had been trying to mediate an end to the conflict.
The lack of interest from Washington and Tehran suggests both sides are digging in for an extended conflict, even as the widening war inflicts civilian casualties and Iran’s closure of the Strait of Hormuz sends oil prices soaring.
US strikes on Iran’s Kharg Island, the country’s main oil export hub, on Friday night underscored Trump’s determination to press ahead with his military assault. Iran’s new Supreme Leader Mojtaba Khamenei has vowed to keep the Strait of Hormuz shut and threatened to step up attacks on neighboring countries.
The war has killed more than 2,000 people, mostly in Iran, and created the biggest-ever oil supply disruption as maritime traffic has halted in the Strait of Hormuz, through which a fifth of the world’s oil is transported.
ATTEMPTS TO OPEN LINES OF COMMUNICATION
Oman, which mediated talks before the war, has tried multiple times to open a line of communication, but the White House has made clear it is not interested, according to two sources, who like others in this story were granted anonymity in order to speak freely about diplomatic matters.
A senior White House official confirmed Trump has rebuffed those efforts to start talks and is focused on pressing ahead with the war to further weaken Tehran’s military capabilities.
“He’s not interested in that right now, and we’re going to continue with the mission unabated. Maybe there’s a day, but not right now,” the official said.
During the first week of the war, Trump wrote on his Truth Social platform that Iran’s leadership and military were so battered by US-Israeli strikes that they wanted to talk, but that it was “Too Late!” He has a history of shifting foreign policy stances without warning, making it hard to rule out that he might test the waters for restarting diplomacy.
“President Trump said new potential leadership in Iran has indicated they want to talk and eventually will talk. For now, Operation Epic Fury continues unabated,” a second senior White House official said when asked to comment on this story.
The Iranian sources said Tehran has rejected efforts by several countries to negotiate a ceasefire until the US and Israel end their airstrikes and meet Iran’s demands, which include a permanent end to US and Israeli attacks and compensation as part of a ceasefire.
Egypt, which was involved in mediation before the war, has also tried to reopen communications, according to three security and diplomatic sources. While the efforts do not appear to have made progress, they have secured some military restraint from neighboring countries hit by Iran, according to one of the sources.
Egypt’s foreign ministry, the government of Oman and the Iranian government did not respond to requests for comment.
POSITIONS HARDEN ON ALL SIDES
The war’s impact on global oil markets has significantly increased the cost for the United States.
Some US officials and advisers to Trump urge a quick end to the war, warning that surging gasoline prices could exact a high political price from the president’s Republican Party, with US midterm elections looming.
Others are pressing Trump to maintain the offensive against the Islamic Republic to destroy its missile program and prevent it from obtaining a nuclear weapon, according to Reuters reporting.
Trump’s rejection of diplomatic efforts could indicate that, for now, the administration has no plans for a quick end to the war.
Indeed, both the United States and Iran appear even less willing to engage than during the opening days of the war, when senior US officials reached out to Oman to discuss de-escalating, according to several sources.
One source said Iran’s top security official, Ali Larijani, and Foreign Minister Abbas Araghchi had also sought to use Oman as a conduit for ceasefire discussions that would have involved U.S. Vice President JD Vance.
But those discussions have not materialized.
Instead, Iran’s position has hardened, said a third senior Iranian source.
“Whatever was communicated previously through the diplomatic channels is irrelevant now,” said the source.
“The Guards strongly believe that if they lose control over the Strait of Hormuz, Iran will lose the war,” the source added, referring to the Islamic Revolutionary Guard Corps, an elite paramilitary force that controls large parts of the economy.
“Therefore, the Guards will not accept any ceasefire, ceasefire talks, or diplomatic efforts, and Iran’s political leaders will not engage in such talks despite attempts by several countries.”
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US Strikes More Than 90 Iranian Military Targets on Kharg Island, CENTCOM Says
A satellite image shows an oil terminal at Kharg Island, Iran, February 25, 2026. Photo: 2026 Planet Labs PBC/Handout via REUTERS
United States forces executed a large-scale precision strike on Kharg Island in Iran on Friday night, the US Central Command said on Saturday.
“US forces successfully struck more than 90 Iranian military targets on Kharg Island, while preserving the oil infrastructure,” CENTCOM said.
The strike destroyed naval mine storage facilities, missile storage bunkers, and multiple other military sites, the US military said in a post on X.
President Donald Trump threatened on Friday to strike the oil infrastructure of Iran’s Kharg Island hub, unless Tehran stopped attacking vessels in the Strait of Hormuz.