By Allison Malloy, CNN
Updated 4:14 PM ET, Thu December 1, 2016
Washington (CNN)The sons of Ethel and Julius Rosenberg, two convicted communist spies who were sentenced to death during the Cold War, visited the White House without an invitation on Thursday to call on President Barack Obama to exonerate their mother, in what they see as their final shot.
Robert and Michael Meeropol have been advocating on behalf of their parents for over 63 years since they were convicted of providing secrets of the atomic bomb to the Soviet Union and executed by electric chair.
In recent years, court documents and witnesses have cast doubt on what crimes the Rosenbergs actually committed or what role Ethel Rosenberg played. Read the full story at the link above.