question, the candidate will have two minutes to respond and then an exchange between the two nominees. here's a look at the topics for tonight's debate as selectioned by bob schieffer. beginning with america's role in the world, followed by what he is calling our longest war, afghanistan and pakistan. then the so-called red lines, israel and iran, a changing middle east, followed by the new face of terrorism and concluding the 90-minute debate with the rise of china and tomorrow's world. the next hour and a half we're going to preview what to expect from lynn university. as always, we want to hear from you. our phone lines are open. the question we're asking -- what would you ask if you were posing questions to president obama and governor romney? 202 is the area code, 737-00016789 our lines for those supporting the president and 202-737-0002 for those supporting governor mitt romney. undecided voters, 202-628-0205. you can also weigh in on our