CNN Special Investigations Unit S2007 E14 Battlefield Breakdown

John King reports on the unintended consequences of the Iraq War, which include more than 3500 American dead; a cost of some $500 billion; and the fact that two-thirds of the Army's 42 active brigades aren't battle ready. Included: comments from Sen. Jack Reed (D-R.I.); and Stephen and Kay Castner, whose son Stephen died in Iraq.