Attack their political views. Take issue with their statements in front of the 9/11 commission. Tell them they're exploiting their positions as 9/11 widows.
But asserting that they're glad their husbands are dead and that these guys would have divorced them anyway is just plain mean. In fact, dragging any speculation about their husbands into her book was wrong, and Bones knows it. She got personal like this because she wanted this reaction. She relishes controversy and could care less if it actually hurts anybody, so long as she can rake in the book sales.
Things like this that go around, tend to come back around.
Thanks for the intelligent look at the controversy.