Summary: Well, there probably won't be any chuckles at tonight's 3rd and final U.S. Presidential debate between Barack Obama and Mitt Romney. But with just two weeks to go til voting day, the race for president couldn't be tighter--at least according to pollsters. So a lot will be on the line at tonight's foreign policy debate. Or will it? Today, we're asking what's really accomplished in these face-to-face face offs.
