Oh, another one?
Who could have predicted that?
The other Jewish spies and/or couriers were Ted Hall, David Greenglass, Morris Cohen, Harry Gold and Julius and Ethel Rosenberg. Klaus Fuchs is notable for being the only Soviet spy who worked on the development of the atomic bomb who wasn’t Jewish.
“The world’s first atomic bomb was detonated on July 16, 1945, in the New Mexican desert — a result of a highly secretive effort code-named the Manhattan Project, whose nerve center lay nearby in Los Alamos. Just 49 months later, the Soviets detonated a nearly identical device in Central Asia, and Washington’s monopoly on nuclear arms abruptly ended.
How Moscow managed to make such quick progress has long fascinated scientists, federal agents and historians. The work of three spies eventually came to light. Now atomic sleuths have found a fourth. Oscar Seborer, like the other spies, worked at wartime Los Alamos, a remote site ringed by tall fences and armed guards. Mr. Seborer nonetheless managed to pass sensitive information about the design of the American weapon to Soviet agents.
The spy fled to the Soviet Union some years later; the F.B.I. eventually learned of his defection and the espionage but kept the information secret. …”
“(NEWSER) – Three Soviet spies were at Los Alamos during World War II, stealing atomic secrets—that we know. Now the CIA journal Studies in Intelligence reports on Oscar Seborer, a fourth, previously unknown figure who may have “handed” Soviets the A-bomb formula before defecting to the USSR. Born in New York City in 1921 to Jewish immigrants from Poland, Seborer had three brothers, two of whom also became US moles; all were drawn to Communist Party USA and came from a family connected to Soviet intelligence, per the Jewish Press. Yet Seborer was able to join the US Army in 1942, take an assignment at the Oak Ridge military complex—where the Manhattan Project was headquartered—and get transferred to Los Alamos in 1944. …”
“Oscar Seborer, who was working at Los Alamos, NM, at the time Manhattan project scientists were laboring to beat their Nazi counterparts in the race for an atomic weapon, passed sensitive information to Soviet agents, according to an article titled “On the Trail of a Fourth Soviet Spy at Los Alamos” by Harvey Klehr and John Earl Haynes, in the current issue of the CIA journal Studies in Intelligence. …
Like many Jewish families from Eastern Europe, the Seborers came to the United States in stages. Abraham, born in 1876, and Jennie, born in 1881, left Poland with their eldest son, Max, born in 1903. They traveled to Great Britain, where another son, Noah, was born in 1905. Stuart, born as Solomon, came along in 1918. By the time their only daughter, Rose, was born in 1919, the family had been living in the United States for a decade. The youngest child, Oscar, followed in 1921. …”
Oscar Seboror received the Order of the Red Star in Moscow.