Wrong. He can write what he wants. he can publish what he wants. But people don't have to elect him a senator if they find it troubling. yes it's fiction, but he wrote it and he owns it.
Looks like other found the book a good read. http://www.amazon.com/Lost-Soldiers-James-H-Webb/dp/B00006JO28/sr=8-7/qid=1161907163/ref=pd_bbs_7/102-8997217-3924909?ie=UTF8&s=books
I don't see this as a big deal and something so petty that it could backfire in Macacavitz's face. We'll see how this plays out.