GIBSON: And some of that is entitlements. For a little background, ABC's Betsy Stark.
(BEGIN VIDEO CLIP)
ABC BUSINESS CORRESPONDENT BETSY STARK: Every hour of this new year, another 400 baby boomers will turn 60, swelling the ranks of those soon eligible to collect Social Security and Medicare. The forecasts are foreboding. By 2017, the Social Security surplus runs dry and the system begins taking in less tax revenue than it pays out in benefits.
For Medicare, the problems are even more severe. By 2013, the program's Hospital Insurance Fund is expected to fall into the red and the insurance premiums seniors pay for doctor's visits and prescription drugs are projected to keep rising.
(END VIDEO CLIP)
STARK: Many young Americans simply assume there will be nothing left for them to guarantee the security of their old age.
GIBSON: So I hope we have time to get to some of that, but before we get to it, talking about domestic policy, I want to get to the concept of change, because 60 percent of the people going into the Democratic caucuses in Iowa said they were going to go there for change, and that seemed to redound to your benefit, Senator Obama.
GIBSON: And arriving here in New Hampshire, Senator Clinton, you called into question, really, what that means.
And you said, and I'm quoting you now, "On a lot of issues, it's hard to know where he," referring to Senator Obama, "stands. And people need to ask that. Everybody needs to be vetted."
So let me have a little dialogue between the two of you.
What does he need to be vetted on? And what questions are there about Senator Obama that are unanswered?
CLINTON: Well, let me say, first, that I think we're all advocating for change. We all want to change the status quo, which is George W. Bush and the Republican domination of Washington for so many years.
And we all are putting forth ideas about how best to deliver that change.
But I don't think you make change by, you know, calling for it or by demanding it; I think it is a result of very hard work, bringing people together, stating clearly what your goals are, what your principles are and then achieving them.
And I do think that, you know, part of what this primary process is all about, and New Hampshire voters are, you know, famously independent in making their judgments, is to look at our records, to evaluate where we stand and what we stand for.
And I think that there is a lot of, you know, room to ask all of us questions.
You know, Senator Obama has been -- as the Associated Press described it, he could have a pretty good debate with himself, because four years ago, he was for single-payer health care. Then he moved toward a rejection of that, a more incremental approach. Then he was for universal health care. Then he proposed a health care plan that doesn't cover everybody.
CLINTON: I think that's relevant. I mean, I think that what we're looking for is a president we can count on, that you know where that president is yesterday, today and tomorrow. And I think that, you know, there are questions that should be asked and answered from each of us. And I certainly have no problem with whatever scrutiny comes my way.
GIBSON: Senator Obama?
OBAMA: Well, you know, I think the Associated Press was quoting some of your folks, Hillary, so let's talk specifically about health care, since you mentioned that.