. >> on the phone is tim starks, he's the 5x5 staff writer for roll call, covers intelligence issues. tim starks, what do we mean when we say going on the offense when it comes to cybersecurity and cyber attacks? >> it's a very good question. the line between offense and defense on cybersecurity is very narrow. obviously, you know, defending your networks includes making sure that it's harder for people to intrude on them. but, there are people who say part of the defense is offense. you need to make it so that if someone goes -- attacks your networks you can attack them back. it's a deterrent, if you will. so, there's really no question that the united states has conducted cyber offense. nsa would say in the name of cyber defense. you know, you look at the attack on north korea, probably, as an example of that. after the sony break-in. but it is difficult to define what cyber offense is. >> and under what scenario would the u.s. engage in this? >> so you know, the defense department has asserted its right to basically go on cyber offense when trying to defend the nation, our allies a

host: tim starks with rollcall, thank you for your time. guest: thank you. host: what you think at kosher the u.s. be engaging in offense of cyberattacks? let the decision makers out here know what you think. should this be something that the u.s. does? in stark mentioned the chairman of the homeland security committee, michael mccaul. here is a statement from him saying assaults from cyber jihadist will become more common unless it ministration developed a strategy for properly responding to these cyberattacks, including those like north korea attacking sony. without some rules of the game for offensive responses, cyber threats and intrusions will continue and escalate. the numbers are on the screen. while the wait for the calls to come in, let me show you what defense secretary nominee ashton carter had to say last week at his confirmation hearing. he was asked by senator deb fischer, republican of nebraska about his views. here's what he had to say. [video clip] >> we need to improve our defenses, but we also need to improve our ability to respond. those

tim starks, thank you for your time. >> no, thank you. >> a reminder we'll hear more about cybersecurity at 12:45 this afternoon live on c-span2 at the wilson center with lisa monaco, the white house homeland security, and counterterrorism adviser. we're here with the senate finance committee hearing this morning on the u.s. tax code. members will hear from former senators bob packwood, the oregon republic, and the democrat from new jersey bill bradley. both former members of the committee and both were part of the 1986 tax bill under president reagan. our live coverage under way here. we're waiting for senator hatch, who is the chairman. he opened the senate this morning. the senate started its session today, no firm legislative schedule has been announced yet but senators have been giving speeches about the homeland security bill and those provisions in it that would block the president's immigration action. live coverage of the senate over on c-span2. the house begins its legislative day today at noon. they'll take up several bills. includes one that provides $18 billion for nasa prog

tim starks, what do we mean when we say going on the offense when it comes to cyber security and cyberattacks? guest: it's a very good question. the line between offense and defense insider security is very narrow. obviously, defending her networks makes it harder for people to intrude on them, but there are people who say part of the defense is offense. you know, you need to make it if someone attacks her networks, you can attack them back. it is a deterrent, if you will. there is no question the u.s. has conducted cyber offense, you know, they would say in the name of cyber defense. you look at the attack on north korea probably as an example of that. after the sony break-in. but it's difficult to define what cyber offense is. host: and under what scenario with the u.s. engage in this? guest: the defense department has asserted its right to, basically go on cyber offense when trying to defend the nation , our allies, and interests. that is an official defense department report from late 2011, for instance. that would be one area where they would go on offense name of defense. host: what cou

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