bob deans, former correspondent for the atlanta journal-constitution is the author of the river where america began, a journey along the james. for more information visit nrdc.org. >> next, sandra mackey was a guest on booknotes in 2002. to discuss her book "the reckoning," iraq and the legacy of saddam hussein. in the book she chronicles the history of iraq and the career of saddam hussein. c-span: sandra mackey, author of "the reckoning: iraq and the legacy of saddam hussein," on your last page of the book, page 396, you write this: "an invasion of iraq has become almost a given in the unfolding war on terrorism." why? >> guest: iraq and the legacy of saddam hussein": i think there are a variety of reasons, depending on where different people in the administration are coming from. i think, certainly, donald rumsfeld sees an invasion of iraq to rid of saddam hussein as a way of reducing our defense costs in the persian gulf. his deputy, paul wolfowitz, i think comes at it more ideologically, that saddam hussein really is a threat to the region, and particularly to israel, and therefo