Fox News Sunday interviews during 2015: on Homeland Security

Rand Paul: More targeted surveillance; no bulk data collection

A: I don't think there's any instance in which we found that the indiscriminate bulk collection of records have helped us. Three independent commissions looked at this, every one said that no terrorist has been caught through bulk collection. So I do want more individualized investigations. The Fourth Amendment says you can collect records, you just have to name the target, have some suspicion that you present to a judge. But I don't want the blanket surveillance of all Americans. I'm not willing to give up on the Bill of Rights in order to say, "I can feel more safe". We've been doing this for ten years. Not one terrorist has been caught through this program. When you look and you say, "is it illegal?" The courts have said it's illegal. Many scholars are saying it's unconstitutional.

Rand Paul: Increase targeted surveillance to defend against terrorism

PAUL: There was a poll not too long ago in Iowa that asked, do you think we should be more involved in foreign wars, like John McCain, who wants to be everywhere all the time, or do you think we should be less involved or more judicious and only go to war when we have a threat to an American interest, like Rand Paul? And it polls equally in Iowa. So I think the party is split on some of these things. I do want to defend America. In fact, I think we are distracting ourselves from the real terrorist threat by collecting so much information that we get inundated by the information and we get distracted. I want to collect more information on terrorists, but I want to do it according to the 4th Amendment--which puts forward that suspicion should be individualized and there should be a warrant with a judge's name on it.

Chris Christie: Gathering metadata is necessary for homeland security

CHRISTIE: I've had to review applications under the PATRIOT Act. I know what it's like to interact with the FISA court. We can do this and protect civil liberties. And, of course, we want to track terrorists' phone numbers. We're not listening to anybody's conversations. We're not looking at their emails without the type of search warrants that the court is talking about. What we're saying, though, is, if you're a known terrorist outside this country, and you're calling numbers inside this country, we'd like to know who those people are.

Q: What do you say to those that feel that their government may have them under attack?

CHRISTIE: We should engage in vigorous congressional oversight over our intelligence community, and our Justice Department should prosecute any intelligence officer who violates the law. We have those safeguards available to us.

Mike Huckabee: NSA bulk metadata isn't effective; human intelligence is

A: The Constitution already provides what we should do. If you have probable cause, you go to a judge, you get a warrant, and then you listen in on his calls, now you've got the other branch of government that's constitutionally required to be a part of that process. You don't just give the executive branch unlimited power.

Q: Do you support NSA bulk collection of metadata?

Q: 225 different terrorist plots over the past years since 9/11 and so far, not one of them has been tied directly to the NSA's collection of metadata. So, if this is so effective, how come it hasn't resulted in the foiled terrorist plots? Those have been foiled by old fashion good police work, old-fashioned human intelligence. It seems like we're spending billions of dollars on whiz-bang technology and not enough money on human resources, which really is proven to be the most effective way of stopping terrorism.

Bernie Sanders: We need a strong military, but stop wasting tens of billions

SANDERS: What I do believe is that there is enormous waste in military. The Department of Defense can't even audit itself--massive cost overruns. Of course, ISIS is a terrible organization that has to be defeated. And, of course, we need a strong military. But just as with every other agency of government, you know what, the military also has got to get rid of waste and fraud and cost overruns. So, I want a strong military. But I do not believe, among other things, that without an audit, we should be throwing tens of billions of dollars more into the Department of Defense.

Carly Fiorina: Don't pull punches on Benghazi: a tragedy and a scandal

FIORINA: Well, I think it was part of the plan all along that the Clintons had. Look, I think it was very deliberate that they had a private server. I think it was very deliberate that she used a personal e-mail account. I think this clearly was a deliberate effort to shield her communications. We need a nominee who will bring this up in the general election. The reason Benghazi was not enough of an issue in the 2012 election is because, unfortunately, our nominee pulled his punches when he had an opportunity to remind the American people of the Benghazi tragedy and scandal.

Q: So, you won't pull your punches on Hillary?

FIORINA: Oh, I will not pull my punches--not now and not in a general election.