Kerry's VVAW was far more radical than just visiting the Paris Peace Talks and meeting with Communist Agents of North Vietnam, consider the following:
From the FBI files it can be proved that leaders of the VVAW;
1. Met with Soviet KGB agents in DC.
2. Coordinated antiwar efforts (protests) with the NV Communists to coincide with attacks on US troops by the NV Army in an effort to get Nixon to stop bombing NV troops during the attack on our troops.
3. Collected information from Vietnam vets concerning tactics and weapons and passed the information on to the Soviets and NV Communists.
4. Had a plan and were training members as a hit squad to assassinate up to 20 of our government leaders.
5. Developing plans that involved kidnapping elected officials and holding them until the US pulled troops out of Vietnam. Some members were arrested for this plot.
6. Two members arrested while driving to a VP Agnew speech with a "bomb" in their car.
7. VVAW was funded by the Communist Party USA, and a Communist Party of a country in Europe.
8. Members and leaders were running weapons to a black militant group in Cairo Il, and later this resulted in members of the group shooting a police officer.