up next, a conversation or between the eldest son of julius rosenberg and his daughter, heidi, directord producer of rare to execution, which focuses on the legacy of her grandparents. this conversation, moderated by david lewis, is about 50 minutes. >> during the federal trial of julius and ethel rosenberg, there was almost a unanimous response from the public to cheer on the attorney general and the justice department's kennedy's 9 to convict the defendants. very little public protests until a newspaper, the national

these revelations indicate that yes, he was a spy, julius rosenberg. publishing was.he was executed from testimony by her sister-in-law. that has been made clear. and he was not involved particularly in nuclear espionage. he was doing a lot of other things, radar, other kinds of weapons. but all that stuff sensitive treachery was done by a man named klaus fuchs, who ended up getting an eight-year prison sentence. the fact that matters nobody looks very good when you look at, of that case, certainly not the prosecution, circling of the judge who apparently wasn't some collusive extrajudicial conversation with the prosecution. certainly not roy cohn, who was daemonic and boasted about putting the idea of sentencing them to death. and judge kaufman's mind. answer cannot judge kaufman, who said that the rosenbergs were responsible for the korean war. totally insane. everyone looks bad if you look at that case. everyone. >> i could continue my question for you for the next several hours, but we have a tradition here of inviting the audience to approach one of the microphon

but ivy meeropol, we didn't want her career to be defined as the granddaughter of julius and ethel rosenberg she got interested in her 20s, we said do some stuff, right some screen plays, read some articles, have a job, to us when you have done some things so that you don't become in danger of becoming a one trick pony and she didn't do it in her majority. so we were enthusiastic participants. all members of the family, my wife and i, brother and sister-in-law and others, it was the right time for. i hope you agree with me. >> i also think he was worried about me. it was a very hard thing to do. i was upset all the time, it is cathartic and catharsis is not fun when you are going through it. so that as part of it. you were protecting me from having to deal with all these difficult questions. >> that is why in your 30s -- >> yes, it was definitely better. i needed some maturity to do a good job. >> i have a painful question. is it true that your father save your mother by saying yes, i did it? >> it is great that you asked that question because our son asked the same question in the documenta