In their final debate before Saturday's decisive runoff, incumbent Democratic Sen. Mary Landrieu and Republican Suzanne Haik Terrell argued about which of them is responsible for the negative tone of the campaign and which of them has run a campaign most consistent with "Louisiana values." With a new poll showing the race a dead heat, Landrieu and Terrell didn't waste any time telling viewers why each could do more for Louisiana than her opponent and continuing the personal attacks that have dominated the runoff campaign. Only when pressed to say something positive about each other during the hourlong WWL-TV...