STEPHANOPOULOS: That is an excellent point. Let me -- let's get to this investigation right now. We learned, Senator, from McClatchy news this morning that Colombian police are now investigating whether any of the women involved in this scandal were underage. And we know that at least six agents have been forced to leave their jobs. Do we have any evidence that underage women were involved? And do you expect more agents to go?
COLLINS: That's an issue that I raised with the director, and he told me that at this point there is no evidence of underage women. But, frankly, in some ways, although that would make the matters worse...
COLLINS: ... it would make it illegal, so that obviously makes it worse. It is beside the point as far as the broader issue. Most Secret Service agents do an extraordinary job, and they're very disciplined and professional. But what are Secret Service personnel doing bringing unknown foreign nationals to their rooms, regardless of their age?
STEPHANOPOULOS: Again, that is an excellent point. And the chairman of your committee has sent a letter to Director Sullivan suggesting that those four nationals may have come in contact with sensitive security information. Do you have any evidence of that?
MALONEY: Well, I -- I spoke to Director Sullivan last night. And he is doing a thorough investigation. He does not believe that security was compromised in any way for the president or any national leader.
STEPHANOPOULOS: Are you pretty confident of that at this point?
MALONEY: Well, the investigation is going forward. We don't have all of the facts yet. We need to wait until the end. I know that he found -- another person was implicated. He announced that immediately. I'm pleased that the whole process is very transparent. And we'll see at the end. And the Oversight Committee will be holding hearings when the information comes out, and we are going to get to the bottom of this.
STEPHANOPOULOS: But, Senator, you said you find this hard to believe that this is a one-time incident.
COLLINS: I do. Now, I recognize that the vast majority of Secret Service personnel are professional, disciplined, dedicated, courageous. But to me it defies belief that this is just an aberration. There were too many people involved. If it had been one or two, then I would say it was an aberration. But it included two supervisors. That is particularly shocking and appalling.
STEPHANOPOULOS: And one of those supervisors, who's now been forced out, David Chaney, had also posted a picture of himself on Facebook -- I want to put it up right here showing him. He was supposed to be protecting Sarah Palin, but as you see there, he said, "I was really checking her out, if you know what I mean." And that brought a sharp rebuke from Palin, who said it was evidence of government run amok.
(BEGIN VIDEO CLIP)
PALIN: The store around here -- the buck stops with the president. And he's really got to start cracking down and seeing some heads roll. You know, he's got to rid of these people at the head of these agencies where so many things obviously are amiss.
(END VIDEO CLIP)
STEPHANOPOULOS: Should heads roll?