Although Julius and Ethel Rosenberg were clearly traitors, and the penalty for treason is potentially death.. were the law to be applied evenly today, virtually all politicians, and probably as many back then, would get a humane death for treason, in gas chambers. Fred Leuchter would have been the CEO of a large corporation.
Julius and Ethel were blamed for the Soviet Union's atomic bomb, but probably had little, if anything real, to do with it. They were made an example of, as a message to the rest, which is one of the great hypocrisies of the Judeo-Masonic, arbitrary and hypocritical justice system.
Some of the scientists who worked on the Manhattan Project, were Jews who had fled Germany during WW2, though those (if any) who helped the Soviets produce nuclear weapons, were probably much higher on the food chain, than were the Rosenbergs.
King James Version (KJV)
23 The Lord is my shepherd; I shall not want.
2 He maketh me to lie down in green pastures: he leadeth me beside the still waters.
3 He restoreth my soul: he leadeth me in the paths of righteousness for his name's sake.
4 Yea, though I walk through the valley of the shadow of death, I will fear no evil: for thou art with me; thy rod and thy staff they comfort me.
5 Thou preparest a table before me in the presence of mine enemies: thou anointest my head with oil; my cup runneth over.
6 Surely goodness and mercy shall follow me all the days of my life: and I will dwell in the house of the Lord for ever.