One thing is certain about the Iraq war: It has cost a lot more than advertised. In fact, the tab grows by at least $200 million each and every day. ...In any event, most estimates put forward by White House officials in 2002 and 2003 were relatively low compared with the nation's gross domestic product, the size of the federal budget or the cost of past wars. ....Even if the U.S. exits Iraq within another three years, total direct and indirect costs to U.S. taxpayers will likely by more than $400 billion, and one estimate puts the total economic impact...