Oh, I always knew they were bad, but this takes the cake. Apparently, in their quest for the "truth", the Swift Boat vets actually stumbled upon the truth while looking for dirt on Kerry in Vietnam. But since it confirmed that Kerry was right all along, they basically walked away from it. Oh, well.
Read in more detail here. Note that this is a developing story with some speculation, but I think it suggests that the SWBT are bigger a-holes than earlier thought.