raising smoke about this, and they say there could be fire. wolf, back to you. >> joe, thanks very much. joe johns reporting. hacked e-mails raising new questions about hillary clinton's views on wall street as well. we've got details of that, and the battle to liberate mosul from isis is being called historic. just ahead -- we'll go live to the front lines. i'll also ask the pentagon spokesman to lay out exactly what role u.s. troops are playing right now in this battle.