I read it, all it says that there is some debate whether or not Kerry actually received the wound from enemy fire, and how he got awarded the purple heart for it.
About 3 million people violently lost their lives at the hands of other people in the war. Fact is Kerry saved more lives then most any vietnam soldier, by his political activities after the war. Mostly Vietnamese lives, but some Americans as well. The awarding of purple hearts was instrumental for that activity. What's also important is that he saved a lot of people from being any more complicit in murder as well, and I think some of his detractors might well be some of those whose innocense he kept, despite themselves.
regards,
Mohammad Nor Syamsu