I didn't see it, but Nightline has exposed the Smear Boat Vets for the liars they are. Nightline went to the actual location where Kerry earned his Silver Star and the Vietnamese villagers back up his story. The Viet Cong had sent insurgents to that village; they were firing on the Swift Boats. The Viet Cong that Kerry shot was not a teenager; he was 26 or 27 years old, and his name was Bat Tan.
So now Kerry's crewmates back up his story, the official records back up his story, and the Vietnamese villagers present at the event back up his story. How many lies does a person have to tell before you can just say, "Liar," and be done with them?