I read her story on her web page and she almost had me until she started typing. Hanoi Jane and John Freaking Kerry gave the North the hope we would let up when it was clear that Nixons bombing campaign had them close to defeat. Not my words but the comments of a North Vietnamese General.
The degrees of treason here differ. She was an ACK-TORE with one year of college. Kerry was an officer in the U. S. Navy with 4 years of Yale behind him who lied to Congress (and became a pretty-much permanent U. S. Senator). The penalty, however, is the same.
What is less frequently traced to La Fonda is the Vietnam Wall, a clear victory for the antimilitary forces in the U. S. at the time.