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The Jewish story behind ‘Oppenheimer,’ explained
(JTA) — Friday is not just “Barbie” release day — moviegoers are also planning to fill theaters across the United States to see Christopher Nolan’s “Oppenheimer” biopic.
Many hope it will answer a question that has long divided Americans and the country’s understanding of its history: Who exactly was J. Robert Oppenheimer, the father of the atomic bomb?
Oppenheimer’s name has become “a metaphor for mass death beneath a mushroom cloud,” in the words of Kai Bird and Martin J. Sherwin, whose 2005 book “American Prometheus” was adapted into Nolan’s film. But to fully understand the physicist, biographers have looked for clues in his belief system — an ethical code grounded in science and rationality, a fiery sense of justice and a lifelong ambivalence toward his own Jewish heritage.
Here’s a primer on his Jewish story, the other Jewish characters he met while developing the Manhattan Project and how the movie portrays it all.
The German Jew who was “neither German nor Jewish”
Oppenheimer was born in 1904 to German Jewish parents rapidly rising into Manhattan’s upper class. His father, Julius Oppenheimer, came from the German town of Hanau and arrived in New York as a teenager — without money or a word of English — to help relatives run a small textile import business. He worked his way up to full partner, won a reputation as a cultured fabrics trader and fell in love with Ella Friedman, a painter whose German-Jewish family had settled in Baltimore in the 1840s.
Their secular household embraced American society. The Oppenheimers never went to a synagogue or had a bar mitzvah for their son; instead, they aligned themselves with the Ethical Culture Society, an offshoot of Reform Judaism that rejected religious creed in favor of secular humanism and rationalism. Oppenheimer was sent to the Ethical Culture School in New York’s Upper West Side, where he developed an interest in universal moral tenets and a firm distance from Jewish traditions.
Although his parents were first- and second-generation German immigrants, Oppenheimer always insisted that he didn’t speak German, according to Ray Monk, the author of “Robert Oppenheimer: A Life Inside the Center.” He also maintained that the “J” in “J. Robert Oppenheimer” stood for nothing at all — even though his birth certificate read “Julius Robert Oppenheimer,” indicating his father had passed on the Jewish name.
“To the outside world, he was always known as a German Jew, and he always insisted that he was neither German nor Jewish,” Monk told the Jewish Telegraphic Agency. “But it affected his relationship with the world that that is how he was perceived.”
The real Oppenheimer shown in an undated photo. (Bettmann/Getty Images)
Oppenheimer’s academic brilliance became a flimsy shield against the antisemitism that orbited his life. He entered Harvard just as the university moved toward a quota system over concerns about the number of Jews being admitted. Nonetheless, he kept to his studies and stayed aloof from the campus controversy, according to Monk. He even tried to befriend non-Jewish students, but the prevailing antisemitism mostly doomed those efforts and left him with a predominantly Jewish friend group.
After earning a bachelor’s degree from Harvard in 1925, he conducted research at the University of Cambridge’s Cavendish Laboratory and completed his PhD at Göttingen University — in pre-Nazi Germany — under Max Born, a pioneer of quantum mechanics. Before he got to Cambridge, though, a Harvard professor wrote him a recommendation that captured the institutionalized prejudice in academia: “Oppenheimer is a Jew, but entirely without the usual qualifications.”
Oppenheimer returned from Europe to teach physics at the California Institute of Technology and the University of California at Berkeley. While at Berkeley, he tried to secure a position for his colleague Robert Serber and was rebuffed by his department head Raymond Birge, who said, “One Jew in the department is enough.” He did not push back on the decision, later hiring Serber to work on the Manhattan Project.
The Nazi effect
Until the 1930s, Oppenheimer was resolutely indifferent to politics. Though he studied Sanskrit along with science and read classics, novels and poetry, he took no interest in current affairs. He later explained this at his infamous 1954 hearing before the United States Atomic Energy Commission — which, at the height of the McCarthy era, would end with him losing his security clearance over past associations with communists and support for left-wing causes.
“I was almost wholly divorced from the contemporary scene in this country,” he said. “I never read a newspaper or a current magazine like Time or Harper’s; I had no radio, no telephone; I learned of the stock market crash in the fall of 1929 only long after the event; the first time I ever voted was in the presidential election of 1936.”
But a profound shift occurred in Oppenheimer during the mid-1930s, as he watched family, friends and great scientific minds crushed under the tides of Nazism in Germany and the economic collapse at home.
“I had a continuing, smoldering fury about the treatment of Jews in Germany,” he said in his testimony. “I had relatives there, and was later to help in extricating them and bringing them to this country. I saw what the Depression was doing to my students… And through them, l began to understand how deeply political and economic events could affect men’s lives.”
In addition to rescuing family members, while teaching at Berkeley, he earmarked 3% of his salary to help Jewish scientists escape Nazi Germany. By World War II, his drive to defeat Germany would propel him to direct the Manhattan Project — the top-secret development of an American atomic bomb — at the Los Alamos Laboratory in New Mexico.
He was an unlikely candidate for the post. The FBI had already marked him as politically suspect for communist sympathies. He was a theoretical scientist, not an applied scientist with experience leading a laboratory. He wasn’t yet 40 years old. But Lieutenant Colonel Leslie Groves chose Oppenheimer as the Manhattan Project’s director in 1942 partly because he showed a burning sense of imperative.
“Oppenheimer said to Groves, ‘Look, the Nazis will have their own bomb project and it will be led by Heisenberg, who’s one of the leading nuclear physicists in the world. We need to move and we need to move quickly,’” said Monk.
Other prominent Jewish scientists felt compelled to join. Six of the project’s eight leaders were Jewish, along with a significant number of Jewish technicians, scientists and soldiers up and down the ranks, some of them refugees from Europe.
The Strauss feud
Although two atomic bombs ultimately dropped on the Japanese cities of Hiroshima and Nagasaki, not Germany — and Germany had already surrendered by then — Oppenheimer was hailed as a hero for his role in ending World War II.
But only nine years later, he was humiliated before the Atomic Energy Commission and stripped of his security clearance. Lewis Strauss, the chairman of the AEC, became suspicious of Oppenheimer for opposing the development of a hydrogen bomb. Oppenheimer pressed for international control of nuclear weapons, believing the purpose of the atomic weapon was to end all war.
But Strauss had a different objective: U.S. supremacy over the Soviet Union.
Robert Downey Jr. portrays Lewis Strauss, who clashed with Oppenheimer. (Universal Pictures)
“Oppenheimer said you’d have to be crazy to use a weapon that was 1,000 times more powerful than the bomb that destroyed Hiroshima. So his case was, ‘We can’t develop this thing,’” said Monk. “Lewis Strauss was inclined to think that the only person who would advocate the U.S. not developing a hydrogen bomb was somebody who had the interests of the Soviet Union at heart.”
Strauss also developed a personal hatred for Oppenheimer, who could be arrogant and supercilious. They came from very different Jewish backgrounds: Strauss was a committed Reform Jew with modest origins, who worked as a traveling shoe salesman instead of going to college. He identified closely with his faith and served as the president of New York’s Temple Emanu-El from 1938 to 1948.
“I think Strauss also had to navigate being Jewish in an American society that didn’t totally embrace Jews, and I think it was somewhat of a threat to him to have somebody like Oppenheimer whose approach to dealing with his Judaism was to hide it, basically,” physicist and rabbi Jack Shlachter told the Jewish Telegraphic Agency.
In the film, Strauss is portrayed as having secretly orchestrated Oppenheimer’s downfall at the hands of the Atomic Energy Commission, in part by collaborating with Hungarian-Jewish physicist Edward Teller, who agreed with Strauss on the necessity of the hydrogen bomb.
How Nolan’s film portrays the story’s several Jewish characters
Bird writes an account of Oppenheimer running into Albert Einstein, one of the most famous Jewish figures of the 20th century, shortly before the 1954 hearing. The two men were friends and colleagues at Princeton’s Institute for Advanced Study; Einstein joined the faculty after fleeing Nazi Germany in 1933, while Oppenheimer became the institute’s director in 1947.
Einstein had signed a letter to President Franklin Delano Roosevelt, written by physicist Leo Szilard, that urged the development of a fission bomb in 1939. Einstein later regretted signing it.
According to Bird, Einstein urged his friend not to go before the AEC. He said that Oppenheimer had already done his duty for America, and if the country repaid him with a witch hunt, he “should turn his back on her.”
Oppenheimer’s secretary Verna Hobson, who witnessed the conversation, said he could not be dissuaded. “He loved America,” she said, “and this love was as deep as his love of science.”
Einstein responded by calling Oppenheimer a “narr,” or “fool” in Yiddish.
The movie makes considerable hay out of Oppenheimer’s relationship with Einstein, played by Scottish actor Tom Conti. The two men have frequent run-ins both during and after the development of the bomb.
Another Jewish physicist friend and colleague, Isidor Rabi, attributed Oppenheimer’s lifelong loneliness and bouts of depression to the distance he created from other Jews — a community that might have given him some solace from his own government’s rejection.
“Isidor Rabi said that his problem was that he couldn’t identify fully as Jewish,” said Monk. “Although Rabi wasn’t religious, when he saw a group of Jews, he said, ‘These are my people.’ And Oppenheimer could never do that.”
In the film, characters repeat Oppenheimer’s insistence that the “J” stands for “nothing,” rarely interrogating him on his Judaism. He never encounters any overt antisemitism directed at him. Yet the movie’s version of Oppenheimer, played by Irish actor Cillian Murphy, does not seem as tortured by his Jewish identity as Rabi said he was in real life. At several points in the film, Oppenheimer bonds with other characters in his orbit over their Judaism and expresses anger at Hitler’s treatment of German Jews.
A group of physicists at Los Alamos in an undated photo, from left to right: Sir William Penney, Bea Langer, Emil Konopinski and Lawrence Langer. (Corbis via Getty Images)
The film’s Oppenheimer also claims to read German well, including the ability to read Karl Marx’s “Das Kapital” in its original language. It’s part of the character’s lifelong fascination with languages, which also informs his famous utterance of the Bhagavad Gita quote, “Now I am become Death, destroyer of worlds.”
The only language the film’s Oppenheimer seems to have no interest in learning is Yiddish — a fact that Rabi (played by Jewish actor David Krumholtz) ribs him about at their first meeting in prewar Germany, when Rabi tries to bond with Oppenheimer over feeling like their kind isn’t welcome.
In the movie, Oppenheimer is also shown welcoming multiple Jewish refugee physicists to the Manhattan Project facility. Teller, played by Jewish actor Benny Safdie, is one of them, even though he becomes a key adversary.
As for Strauss’ character, played by Robert Downey Jr., he proudly mentions his key Jewish resume point early on in the film.
“I’m the president of Temple Emanu-El in Manhattan,” he exclaims.
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The post The Jewish story behind ‘Oppenheimer,’ explained appeared first on Jewish Telegraphic Agency.
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Iran Criticizes Arab-Islamic Summit Statement, Flags Objections After Doha Meeting
Sheikh Tamim bin Hamad Al Thani, Emir of Qatar, attends the emergency Arab-Islamic leaders’ summit in Doha, Qatar, Sept. 15, 2025. Photo: Hassan Bargash Al Menhali / UAE Presidential Court/Handout via REUTERS
Iran has criticized the final statement of the Arab-Islamic Summit held in Doha on Monday as insufficient, in the wake of last week’s Israeli attack targeting the Palestinian terrorist group Hamas in Qatar.
In a statement released shortly after the summit, Iran reaffirmed its “unwavering support for the Palestinian people and their right to self-determination,” while arguing that a two-state solution to the Israeli-Palestinian conflict cannot adequately address the Palestinian issue.
According to the Iranian delegation, “the only real and lasting solution is the establishment of a single democratic state across all of Palestine, through a referendum involving all Palestinians inside and outside the occupied territories.”
On Monday, Qatar held a summit of Arab and Islamic nations in the aftermath of last week’s Israeli strike on Hamas, with leaders gathering to express support and discuss regional responses.
The Sept. 9 strike targeting leaders of the Palestinian terrorist group in Doha marked a significant escalation of Israeli military operations, reflecting Jerusalem’s broader efforts to dismantle the terrorist group amid the ongoing war in Gaza.
Expressing solidarity with Qatar, summit leaders condemned Israel’s strike, labeling it “cowardly, illegal, and a threat to collective regional security.”
In the final statement, the heads of state declared that “an assault on a state acting as a neutral mediator in the Gaza crisis is not only a hostile act against Qatar but also a direct blow to international peace-building efforts.”
Alongside the United States and other regional powers, Qatar has served as a ceasefire mediator during the nearly two-year Gaza conflict, facilitating indirect negotiations between the Jewish state and Hamas.
However, Doha has also backed the Palestinian terrorist group for years, providing Hamas with money and diplomatic support while hosting and sheltering its top leadership.
During the summit, Arab and Muslim leaders called for a review of diplomatic and economic relations with Israel while firmly opposing any attempts to displace Palestinians.
In the final statement, the heads of state also emphasized resisting Israel’s efforts to “impose new realities on the ground,” urged enforcement of International Criminal Court (ICC) warrants for Israeli leaders over war crime allegations adamantly denied by Jerusalem, and coordinated actions to suspend Israel’s UN membership.
Although Iran participated in the summit and endorsed the declaration, its delegation issued a separate statement shortly afterward clarifying that doing so “must in no way be interpreted, explicitly or implicitly, as recognition of the Israeli regime,” reaffirming its rejection of the Jewish state’s right to exist.
Iranian leaders regularly declare their intention to destroy Israel, the world’s lone Jewish state.
The statement also stressed that the Palestinian people have the right to employ “all necessary means to achieve their inalienable right to self-determination,” emphasizing that backing this cause is “a shared duty of the international community.”
As the heads of Arab and Islamic states convened for a summit on Monday, Israeli Prime Minister Benjamin Netanyahu warned he did not rule out further strikes on Hamas leaders “wherever they are.”
During a diplomatic visit to Israel, US Secretary of State Marco Rubio expressed strong support for Israel’s position, even as Washington previously voiced concerns over the strike in Qatar, a US ally.
Speaking alongside Netanyahu, Rubio said the only way to end the war in Gaza would be for Hamas to free all hostages and surrender. While the US wants a diplomatic end to the war, “we have to be prepared for the possibility that’s not going to happen,” he said.
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“Your Name Was Included”: UC Berkeley Cooperating With Trump Administration, Admits to Disclosing Names
Students attend a protest encampment in support of Palestinians at University of California, Berkeley during the ongoing conflict between Israel and the Palestinian Islamist group Hamas, in Berkeley, US, April 23, 2024. Photo: Carlos Barria via Reuters Connect
The University of California, Berkeley (UC Berkeley) is cooperating with the Trump administration’s inquiry into campus antisemitism, providing materials containing the names of some 160 people identified in disciplinary reports and other official documents.
As first reported by The Daily Californian, UC Berkeley’s official campus newspaper, the university’s Office of Legal Affairs notified every person affected by the mass disclosure, writing to them on Sept. 4.
“Last spring, the [US Education Department’s Office for Civil Rights, or OCR]] initiated investigations regarding allegations of antisemitic harassment and discrimination at UC Berkeley. As part of its investigation, OCR required production of comprehensive documents, including files and reports related to alleged antisemitic incidents,” chief campus counsel David Robinson wrote. “This notice is to inform you that, as required by law and as per directions provided by the UC systemic Office of General Counsel, your name was included in report as part of the documents provided by OGC [Office of General Counsel] to OCR for its investigations on Aug. 18, 2025.”
He added, “These documents contained information about reports or responses related to antisemitic incidents.”
Anti-Israel activists told the Californian that the university is helping the Trump administration hunt witches.
“I think the message was sent to anybody has who has ever been accused of antisemitism, which of course, includes a lot of Palestinians,” one said, claiming that he has been falsely accused. “Whenever we teach about Palestine, it usually leads to an investigation. I think they flagged and sent all of that information to the federal government.”
Students for Justice in Palestine, infamous for its ties to jihadist terror organizations, also criticized the move, charging that the administration had promised to conceal their identities and thereby obstruct the government’s inquiry.
“Chancellor Rich Lyons should not have given assurances that he wouldn’t be giving our information to the federal government,” the group said. “Beyond that, he should never have bowed down so easily. I would think that a university that prides itself on being this liberal haven would at least stand up to a fascist like Donald Trump.”
UC Berkeley came under scrutiny in 2024 after a mob of hundreds of pro-Palestinian students and non-students shut down an event at its Zellerbach Hall featuring Israeli reservist Ran Bar-Yoshafat, forcing Jewish students to flee to a secret safe room as the protesters overwhelmed campus police.
Footage of the incident showed a frenzied mass of anti-Zionist agitators banging on the doors of Zellerbach. The mob then, according to witnesses, eventually stormed the building — breaking windows in the process, according to reports in The Daily Wire — and precipitated the decision to evacuate the area. During the infiltration of Zellerbach, one of the mob — assembled by Bears for Palestine, which had earlier proclaimed its intention to cancel the event — spit on a Jewish student and called him a “Jew,” pejoratively.
Other incidents, including the university’s employment of a lecturer who tweeted antisemitic images — one of which accused Israel of organ harvesting, a blood libel — the rewarding of academic benefits for participating in anti-Zionist activity, and the banning of Zionist speakers from Berkeley Law, have raised concerns about anti-Jewish hated on campus. In 2017, The Algemeiner ranked UC Berkeley as number five on “The 40 Worst Colleges for Jewish Students.”
In August, an Israeli professor sued the university, alleging that school officials denied her a job because she is Israeli — a claim its own investigators corroborated in an internal investigation, according to her attorneys at the Louis D. Brandeis Center for Human Rights Under Law.
Filed in the Alameda County Superior Court, the complaint is seeking justice for Dr. Yael Nativ, who taught in UC Berkeley’s Department of Theater, Dance, and Performance Studies as a visiting professor in 2022 and received an invitation to apply to do so again for the 2024-2025 academic year just weeks after the Oct. 7, 2023, Hamas-led massacre across southern Israel.
A hiring official allegedly believed, however, that an Israeli professor in the department would be unpalatable to students and faculty.
“My dept [sic] cannot host you for a class next fall,” the official allegedly told Nativ in a WhatsApp message. “Things are very hot here right now and many of our grad students are angry. I would be putting the dept and you in a terrible position if you taught here.”
Berkeley’s Office for the Prevention of Harassment and Discrimination (OPHD) later initiated an investigation of Nativ’s denial after the professor wrote an opinion essay which publicly accused the school of cowardice and violations of her civil rights. OPHD determined that a “preponderance of evidence” proved Nativ’s claim, but school officials went on to ignore the professor’s requests for an apology and other remedial measures, including sending her a renewed invitation to teach dance. After nearly two years, the situation remains unresolved.
Follow Dion J. Pierre @DionJPierre.
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Israel Issues Travel Warning Ahead of Jewish Holidays Amid Rising Attacks, Discrimination Targeting Israelis Abroad
A flag is flown during a protest in support of Palestinians in Gaza, amid the ongoing conflict between Israel and Hamas, outside the European Parliament, in Strasbourg, France, Nov. 27, 2024. Photo: REUTERS/Yves Herman
Israel has issued a travel warning ahead of the upcoming Jewish high holidays and the second anniversary of the Oct. 7, 2023, atrocities, alerting citizens of heightened terrorist threats against Israelis and Jewish communities abroad.
On Sunday, the National Security Council (NSC) urged travelers to stay alert, cautioning that the two-year anniversary of the Hamas-led invasion of and massacre across southern Israel could trigger attacks by Iran-backed or Hamas-linked terrorist groups targeting Jews and Israelis abroad.
“The recent period has been characterized by continued efforts to carry out terrorist attacks against Israeli and Jewish targets by the various terrorist organizations (most of them led by Iran and Hamas),” the NSC said in a statement.
“Oct. 7 may again serve as a significant date for terrorist organizations,” the statement read.
Israeli officials warned that the threat mainly stems from Iran and its terrorist proxies, which have increasingly targeted Jews and Israelis beyond Israel’s borders.
In recent months, the NSC reported that dozens of plots have been thwarted, even as violent incidents — including physical attacks, antisemitic threats, and online incitement — have continued to rise.
“With the war ongoing and the terror threat growing, we are witnessing an escalation in antisemitic violence and provocations by anti-Israel elements,” the NSC said in its statement.
“This trend may inspire extremists to carry out attacks against Israelis or Jews abroad,” it continued.
According to the NSC, Iran remains the leading source of terrorism against Israelis and Jews worldwide, acting both directly and through proxies such as Hamas and Hezbollah.
“Iranian motivation is growing in light of the severe blows it suffered in the framework of ‘Operation Rising Lion’ and the growing desire for revenge,” the NSC said in a statement, referring to the 12-day war with Israel in June.
Amid rising tensions over the war in Gaza, Israeli officials have previously warned of Iranian sleeper cells — covert operatives or terrorists embedded in rival countries who remain dormant until they receive orders to act and carry out attacks.
In light of this reality, the NSC also warned that social media posts revealing ties to Israeli security services could put individuals at risk of being targeted.
“We advise against posting any content that suggests involvement in the security services or operational activities, including real-time location updates,” the statement read.
This latest updated warning comes amid a growing hostile environment and a shocking surge in anti-Jewish hate crimes targeting Jews and Israelis worldwide.
Across Europe, Israelis are facing a disturbing surge of targeted attacks and hostility, as a wave of antisemitic incidents — from violent assaults and vandalism to protests and legal actions — spreads amid rising tensions following recent conflicts in the Middle East.
On Saturday, a 29-year-old Israeli and his sister were attacked by three Palestinian men while on vacation in Athens, Greece.
According to local media reports, the two siblings were walking through the city’s center when three unknown individuals carrying Palestinian flags approached them, shouting antisemitic slurs.
The attackers assaulted the Israeli man, a disabled Israel Defense Forces (IDF) veteran, scratching him, throwing him to the ground, and striking him with their flagpoles, while his sister attempted to intervene and protect him.
October 7 is a global war against Jews & Israelis.
Pro-Palestinian radicals just attacked an Israeli man in Syntagma Square, Athens. via @N12News https://t.co/IZR2IdNrUI pic.twitter.com/9S2o4IjtO6
— Eylon Levy (@EylonALevy) September 14, 2025
Greek authorities arrested all five individuals involved in the incident. According to the Israeli man’s father, his son was placed in a cell with 10 Arabs, where he was reportedly beaten again and feared for his life.
In a separate antisemitic incident earlier this year, a group of Israeli teenagers was physically assaulted by dozens of pro-Palestinian assailants — some reportedly armed with knives — on the Greek island of Rhodes.
After leaving a nightclub, the teens were followed to their hotel, where they were violently assaulted, leaving several with minor injuries.
In another example of rising anti-Israel sentiment and hostility toward Jewish communities, one of Britain’s most prestigious military academies, the Royal College of Defense Studies, announced Sunday that it will bar Israeli students from enrolling next year, citing concerns over the war in Gaza.
In Belgium, two IDF soldiers attending the Tomorrowland music festival were arrested and interrogated by local authorities following a complaint from the Hind Rajab Foundation (HRF), an anti-Israel legal group that pursues legal action against IDF personnel, accusing them of involvement in war crimes.
According to HRF, the soldiers were seen waving the flags of the IDF’s Givati Brigade, which they claimed has been “involved in the systematic destruction of civilian infrastructure in Gaza and in carrying out mass atrocities against the Palestinian population.”
In France, a 34-year-old Algerian man was sentenced to 40 months in prison for threatening passengers with a knife and making antisemitic death threats after boarding a train at Cannes station.
In another incident earlier this year, a Jewish man wearing a kippah was brutally attacked and called a “dirty Jew” in Anduze, a small town in southern France.