He would not let her speak (5 words in he would be interrupting and then he'd complain that she didn't answer his questions). He kept asking her to name a name on the left who was a traitor. Easy. Scott Ritter sold out his loyalty to Saddam. Whether it was blackmail or just a payment, he compromised his objectivity and operates in defense of Saddam's regime in Iraq.
She did admit that people don't get tried for being traitors much in America (even "Tokio Rose" and Axis Sally got off eventually). Lord Haw Haw was executed in England but there is speculation that if he had been permitted to return to America, he would have lived.
A lack of willingness to prosecute does not lessen their actions. She did eventually mention Jessica Lange and some others, they did speak out against America on foreign soil (but then so did X42 when he was a college student).
Ann said that since Jane Fonda was never prosecuted (and she posed for photos on an antiaircraft gun in Vietnam), it is unlikely that we will ever seen them prosecuted.