FILE - In this June 14, 1953 file photo, Sophie Rosenberg is shown with her grandsons Robert, 6, left, and Michael, 10, outside the White House in Washington, D.C., during a demonstration seeking clemency for her son Julius and daughter-in-law Ethel Rosenberg. The sons of convicted spy Ethel Rosenberg are asking President Barack Obama to exonerate their mother. Rosenberg was executed, along with her husband, Julius, in 1953 after being convicted in a Cold War atomic spying case that captivated the country (AP Photo)