This time it's United State Trade Representative nominee Ron Kirk who owes back taxes, joining the ranks of other tax-addled Cabinet nominees such as Treasury Secretary Tim Geithner, former Health and Human Services Secretary designate Tom Daschle, and former chief performance officer nominee Nancy Killifer. Kirk owes $9,975 in back taxes, most of that from speaking engagement honoraria. Kirk had told organizations to give speaking fees directly to his alma mater, Austin College. In all, $37,750 of honoraria were not reported as income for tax years 2004, 2005, 2006 and 2007, the Senate Finance Committee reported, saying that Kirk should...