On this day, 74 years ago, on March 30, 1951 (February 23, 1951 in the lunar calendar), the United States tried its first secret spy case of leaking the atomic bomb. Julius Rosenberg On March 30, 1951, in the first espionage case involving the atomic bomb in the United States, Ethel and Julius Rosenberg were found guilty of wartime espionage. Judge Irving R. Kaufman, who presided over the case in federal court in New York City, may sentence the couple to death. Although the two New Yorkers insisted they were innocent, they were charged with stealing the secret of the U.S. atomic bomb and handing it over to the Soviet Union. Rosenberg, 32, is an electrical engineer in the Army Signal Corps. His wife is 35 years old and lives in the village of Knikobok. They have two boys-Michael and Robert. At the trial that began on March 6, the government's important witness was David Greengrass, the 29-year-old brother of Rosenberg's wife. He has admitted his role and mission in this spy plot and will soon be sentenced. The fourth defendant, Martin Sobel, will also be sentenced. Another government witness, Harry Gold, pleaded guilty to participating in the plot and was earlier sentenced to 30 years in prison in Philadelphia. After the jury of 11 men and one woman delivered its verdict, Judge Kaufman said he believed the verdict was correct. He added: "I must say that personally I will not be happy because this is a sad day for America. He said it was shocking and annoying that the people involved in the conspiracy were American citizens. Julius Rosenberg and his wife Ethel were sentenced to death in the electric chair on April 5, 1953. Ethel and Rosenberg were taken back to prison after being convicted