>> dickerson: today on "face the nation." nearly 200 countries sign on to a climate change agreement in paris. and the winds are shifting in the republican presidential race. world leaders celebrate deal to try to stop the earth from getting hotter. >> may represent the best chance we have to save the one planet that we've got. >> dickerson: we'll talk to secretary of state john kerry who negotiated that agreement. then we'll turn to politics and talk to the voters with the donald trump phenomenon. why they love him and stick with him despite controversy after controversy. but is there trouble ahead for trump new poll shows ted cruz way ahead in iowa. we'll have analysis and talk to another g.o.p. contender, ohio

governor john kasich. there's other news, too. senate intelligence chairman richard burr joins us with the latest on the santa barbara shooting we'll talk to an actual scientist about the new climate. it's all coming up on "face the nation." captioning sponsored by cbs good morning welcome to "face the nation." i'm john dickerson. nearly 200 countries have signed on to a climate change agreement they hope will avert a global disaster. each promise to slow carbon emissions towards a goal of preventing global temperatures from rising more than two degrees celsius or 3.6 degrees fahrenheit above preindustrial temperature levels. these are nonbinding and there's no inr enforcement mechanism to punish those who don't keep their promise. secretary of state john kerry, who led the u.s. delegation, compared the effort to moving the biggest battleship in the world. we spoke with him earlier from paris and asked him about the lack of enforcement in the deal.

>> but to get an agreement with 186 nations signing on to a uniform system of required mandatory reporting by which they could be held to a standard and also to be able to have a very ambitious goal and have the flexibility that we have in this agreement to be able to meet those standards did essential. and so i think it's a break away agreement which actually will change the paradigm by which countries are making judgments about this. the most important thing, john, that really happened today is that the business community of the entire world is receiving a message about countries now moving towards clean alternative, renewable energy and trying to reduce their carbon footprint. that is going to spur massive investment and its technology, it's american ingeneral knew tee that is going to solve this problem. people accept somewhere in the

vicinity of $50 trillion to be spent over the course of the next 30, 40 years. that is going to be an enormous transformation of our economy, better because it will reduce our dependency on foreign fuel, will increase our security, it will provide for our environment, cleaner air, healthier people. just all kinds of pluses and in the end going to be a job creator. >> dickerson: what signal does this send to the coal, oil and gas market? >> we're going to continue to be pumping gas and using gas as oil for years to come. what it does signals that there's transformation taking place and people need to diversify, people need to look for cleaner ways of doing things. we commit a fair amount of money to the effort to find clean coal. and if we can burn coal in a clean way, then coal could continually have a future under those circumstances, depending on the price. but more hand more energy

production is going to become price dependent. the president sees this as a critical transformational issue for the american economy. it's also critical for us because you can already see in the united states the negative impacts of climate change. the president went up to alaska this year and showed the world our glacier national park that's disappearing will be altogether gone in a few years that's happening around the world. >> dickerson: one last question, mr. secretary. you spent lot of time talking to muslim nations and paying attention to america's imagine muslim countries what affect does it have that there's conversation about banning muslims from coming into america? >> let be very direct. i believe that that kind of a ban is contrary to american values. contrary to our constitution. but i also think it's a very dangerous foreign policy. because it says to those in

islam who are trying to exploit people and recruit foreign fighters and otherwise it says, look, look at america. here they got guy running for president who is waging war against islam. now that's their impression. it's exploitable. whether he intended it or not and allows for recruitment, it allows for americans to seem like it is indeed discriminatory against islam, against muslims. and it is highly discriminating against many americans and others who are muslim. many people in the world who know that their religion has been hijacked and want to recoup it. i think it's -- got a huge downside in terms of american foreign policy and i hear this from foreign ministers and others as i travel and engage with people invar just countries. >> dickerson: thanks so much, we turn now to campaign 2015.

last week republican consultant frank luntz gathered past and present donald trump supporters in virginia to get their thoughts on the republican front runner. including his controversial comments on muslims. >> done amend j. trump is calling for total and complete shut down of muslims entering the united states, raise your hands if you agree with him. 14, 16, 17. >> they want to come here and blow up america. >> we have no way of knowing. >> we have no way of knowing who they are. >> yes, we need temporary -- that's very reasonable position. >> and the president is not making this deal safer. >> he wants to -- i think we're all scared. i'm actually a little jumpy, i find. trump is the only one who would

come out say something like this no one else would do it. >> you credit him with that? >> i do. no one else would say it. who would say it? >> you don't see even in this room this explosion of points of view that maybe he went too far in what he said? >> you know what he says, he says something completely crazy and ininflammatory. then he dials back starts explaining it and saying how he would -- >> needs common sense. >> trump is smart like a fox. he's in campaign mode. he has to be pro-active. he's intention family playing the medium he's saying things that are right on the edge, he's exaggerating. he's saying thing that he knows the mainstream media will grab and throw gasoline on. it goes really big. >> we're not believing everything he's saying. >> no. >> we're taking it for exactly what he just explained. he goes out and he makes a huge fuss to get everyone's attention

to get his issues addressed. you want him to say, yes, okay, here is what we're going to do. >> is it his persona, his tenacity, his raising of issues you wear about. >> his personality is just so large. he's out there, he's getting everyone to talk about stuff just like lady back here said. >> he is entertaining. he is giving everyone something to talk about. >> he looks presidential and he acts presidential. >> you think he acts presidential? when he is he, i would bomb the [bleep] out of isis. he used the word [bleep] is that presidential? >> yeah! >> americans think country is in crisis. trump is telling them the country is in crisis people flock to a strong leader when they think the country is in crisis. >> not all people, don't talk about people, you flock to trump. >> i'm attracted to his persona. >> because?

>> because of what's happening in the world. international affairs. he stands up there he gives image he's not going to put up with any crap. >> you're an african american, why do you support trump? >> because he's saying stuff that needs to be said. when it comes to the general election i think number of african americans will vote for him, the his persona, entertainment, he's a businessman. >> he will have people to ensure that these types of things aren't said out loud. >> we've seen lot of bad things that trump has done. seen a lot of bad things that he's said, lot more problems in this country that i feel that he is more qualified to handle. >> socially we're tired of political correctness, we're being burdened with it. i think it's making us weaker as a country globally. and i think that he represents that voice of -- that frustration, are that political correctness frustration. >> he makes mistakes, he's human. he says some things that are off color that i'm embarrassed by occasionally. i still think he's a leader and

will prove that he's a leader. >> we need a complete shake up. he's the only one that can do it. >> the $64,000 with marco rubio as republican nominee trump running as independent, who is going to vote for trump raise your hands, right now. the establishment republicans just died. >> they should. >> it's time for real change. >> that's more than half of you just raised your hands that you're going to leave the republican party. >> no. >> i'm voting for a man or woman that wants to change this country. >> he said it. >> they're not listening. i'm voting for the person. he's still out of all of them. rubio has the energy but i think he has the energy and the actual -- >> take the people with us. >> i think there's enough of us

out there would go out, never knocked on doors before ever would actually bring my republican brother, come on, let me talk to you. never done that. >> the republican party has failed us the last two times with weak candidates, mccain is weak and romney who is weak. we're tired of weak candidates. there is no number two to trump. who is number two that can really win the election? >> who? >> trump is independent you're voting for trump. >> yeah. i'd vote for him over rubio. because maybe the party does need to be fractured. maybe it's time to blow it up. >> hillary is -- dickerson: frank joins us from las vegas where republicans will debate on tuesday. frank, some that have whole experience up for us what's the big headline for you? >> the big headline that political correctness is alive and well and it is found in the trump candidacy. three things, number one that trump voters are much more

optimistic that any other republicans because they believe that donald trump can actually turn back barack obama. number two that these voters were salty in their language than any vehicle us group i have ever moderated. they have taken the tone and demeanor of their candidate and they're proud of it. number three, if donald trump should decide to run as independent, the republican party will be in deep, deep trouble. and by the way, i blame the leadership of the g.o.p. because donald trump does his worst in the presidential debates. if there were more debates where other candidates were standing bid sigh side with donald trump he would not be in the position that he is today. >> dickerson: what struck me that there have been series of times in this cycle so far where political strategists and people in the there's have looked at donald trump said, this will be the time that he falls. what you're focus group suggested no matter how many times you offered the audience an opportunity to leave donald trump, to dislike him, to find some other candidate they might

like, they seemed to rally around him even more strongly. >> you're right. discounted all the attacks, the flip flops, he has the right to change his opinion. attacking republicans he's just being entertaining. even his attacks on women, comments he's made about women they don't like it but they find way to justify it. the only thing that could hold trump up is if it were to come out that there were employees that were mistreated or small businesses that were mistreated by trump's companies, that would cause him a problem. all this other political stuff that you hear from the media from his opponents, none sticks to him. >> dickerson: play a little more from the focus groups because a lot of what motivates them that you discovered is an anger about president obama. so let's listen. >> a phrase to describe barack obama. >> great speaker. >> jellyfish marsh meme low. >> annoying. >> delusional.

>> naive. >> i just can't believe glim lost. >> out of touch. >> politician. >> full of himself. >> clueless. >> ineffective. >> elitist. >> doesn't respect american values. >> overwhelmingly cocky. >> unamerican. >> amateur. >> zero leadership. >> out of his depth. >> arrogant. >> still waiting on this hope and change. >> anti-american. >> unamerican. >> bay pack obama, seriously? dickerson: thank frank, i would suggest that they don't like the president but could any other republican, why couldn't any other republican just grab on to that feelingy is donald trump particularly -- >> because no other republican willing to say the things that donald trump says. i don't believe there would be a trump candidacy if there wasn't an obama presidency.

and trump's willingness to say things that we all say go beyond the pale, that is unacceptable in american mol the particulars, these voters exactly what they want to hear and no other candidate talking that way. >> dickerson: not just that they dislike the president but that donald trump is the opposite of the qualities they see in the president. let me ask you about any other candidate in the republican field, any purchase for any other candidate in that room? >> only one who seemed to have some interest was ted cruz. and obviously with the poll that you're about to talk about that's significant. but for the most part, they're not looking at moving from another candidate they're considering do they follow trump through independent candidacy, should trump make that decision. and the language that i used, i about had a heart attack because i've been through this now for 25 years, i've never seen voters so passionate and committed to a candidate after seeing an hour's worth of reasons why not to vote for him.

john, this is significant. trump is not going away, more importantly these voters aren't going away. >> dickerson: all right. >> dickerson: all right. frank luntz, thanks so much. we'll be back in a moment. we can help guide your investments through good times and bad. for over 75 years, our clients have relied on us to bring our best thinking to their investments so in a variety of market conditions... you can feel confident... ...in our experience. call a t. rowe price retirement specialist or your advisor ...to see how we can help make the most of your retirement savings. t. rowe price. invest with confidence.

>> dickerson: joining us from columbus is republican presidential candidate and ohio governor john kasich. governor kasich i wanted to ask you, you said that you've -- you would be doing as well as donald trump if you were getting the find of gargantuan free media. do you think having listened to that focus group you'd be doing as well with that group of voters? >> john, look, the people are very frustrated. as you know, as you've covered politics for a long time we need to fix problems. we're not going to in this case them by yelling and screaming. let's just get -- i don't want to be promoting myself here to tell you the truth. but in balancing the federal budget, does anybody -- you know how hard it was, you got to pull

people together in both parties to get it done. you want to fix social surity, you can't bludgeon people into going along with it in the congress. you want to provide for the national security and you need to rebuild the military you want to have a program that resolves a problem of encryption just can't do it by yelling at people or you have to work together. i'm in this race for one basic reason. i know how to get the economy moving again and i know what we need to do with national security i just spoke at the council foreign relations i i'd encourage people to go on their website look at the speech. we're not going to get anywhere until we're able to get republicans and democrats to work together. and polarization and divisions is going to lead us down the wrong path. i get these people who are upset. i understand why they're upset. i grew up in a community where people were always suspicious of the government or thinks that they didn't deliver things.

but we got to stay calm and we have to unite ourselves. you know what, we will. you mark my words. we will. trump is not going to be president. and he's not going to be a nominee it's not going to happen. >> dickerson: the people in their republican primary process understand what the country needs? >> that's a focus group, john. let's not get carried away with putting handful of people in a room. i think in the end they get overwhelmed by people who say, we got to get things fixed. if they carry the day, we're not going to get things fixed. people are worried about what we're going to do with medicare and social security. if you don't get both political parties to recognize that or at least lower the warfare efforts by both parties. you don't get it done. i've witnessed this throughout my lifetime, whether it was tip o'neill and ronald reagan working on social security or whether it was me and my friends

working on balancing the feted real budget with bill clinton. people now want to know, how are we going to save social security? one party just can't do it. and you can't yell at legislators. i used to be a legislators now i'm an executive i've had the perspective from both sides. john, i really do believe at the end people are going to say who can land the plane and who has got the experience. they're frustrated, they're upset. but you know what, over time people tend to settle down when they actually go into the voting booth and cast a vote for candidate to be president of the united states. >> dickerson: let me ask you question about those republican voters and policy issues, 54% of republican voters in our latest cbs poll supported a within on muslims entering the united states. why is that a bad idea? >> well, john, first of all we don't need more division. everybody who is a muslim isn't some terrorist obviously. vast majority, you have

infinitesimal number who disported the religion and entered the culture of death. let me also say about your polls. you're polling like 400 people out of 325 million. i see polls all the time. i become more convinced now that the reason that god invented pollsters was to make astrologers look accurate. i don't believe that that's where the republican party is. i'm on the ground. i just did my 42nd town hall meeting in new hampshire. that's where you go into a room, you sit there or you stand there and they come at you with questions. they try to size you up. this is not what i get when i'm there. it's not what i get when i to go south carolina or out to iowa. this is not what i hear. i hear people saying, i'm worried about my job. i'm worried about our security. i'm worried about my kids' future what are you going to do about it? what are you going to do about social security. what are you going to do about

college debt. that's what i hear. i don't have people coming up yelling about this other stuff. and i'm right there, anybody can come. by the way i'd invite everybody to come to my meetings, let's talk through all of these issues. >> dickerson: senator -- excuse me governor kasich inviting everyone even astrologers and pollsters. we'll be right back. >> see you, john. happy holidays. >> dickerson: thanks, you, too governor. this holiday season, get ready for mystery. what's in the trunk? nothing. romance. 18 inch alloys. you remembered. family fun. everybody squeeze in. don't block anyone. and non-stop action. noooooooo! it's the event you don't want to miss. it's the season of audi sales event. get up to a $2,500 bonus for highly qualified lessees on select audi models.

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>> dickerson: jim knowledge sus "wall street journal" columnist kim strassel. chief political core accident cbs news political analyst jamelle bouie and usa washington bureau chief, susan page. and "new york times" chief white house correspondent peter baker. kim, i want to start with you with the new numbers that frank luntz mentioned. the "des moines register" and bloomberg likely iowa caucus voters ted cruz 31%. donald trump 21%. ben star son 13, marco rubio 10. jeb bush at 6. what do you make of these new numbers? >> so, ted cruz has run very smart campaign and what he has been doing is split streaming mind donald trump. and that's why he has been so careful up until now to not criticize him. because he's trying to prevent himself as the thinking man's trump out there. and so you just saw that frank

luntz panel, people want action. they want someone that's going to be aggressive and ted cruz has been doing that. while also sounding a little bit more sane than front runner you're seeing that in the poll now. that's why you also see donald trump going after him because he recognizes that there is a threat. >> dickerson: susan, so goes iowa so goes republicans? >> not the case recently. last two winners of the iowa caucus have not even won the nomination not to mention presidency. look at new hampshire that's where establishment republican candidate like john kasich and christie and bush and rubio will fight out against trump and cruz. >> dickerson: we'll look at these numbers when we come back for right now take short break. we'll be back in a moment. this is the one place we're not afraid to fail. some of these experiments may not work.

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>> dickerson: some of our cbs stations are leaving us now but for most of you we'll be right back with a lot more "face the nation." stay with us.

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>> dickerson: welcome back the face the nation. we continue with our panel with kim strassel of the "wall street journal." jamelle bouie and "usa today's" susan page, peter baker of the "new york times." peter baker i want to start with you what was your reaction to that focus group of trump supporters? >> it really instructive. very good, able to talk, very raw, hon e, open way they were couching their statements. it was inconsistent at times. yeah, we don't think he means what he says but we love it. kind of crazy but he'll take care of it. they didn't seem him being 100% what he presents himself to be that's okay with them because he reflects obviously broader frustration that they're feeling with the system with media as well as republican party. frank luntz asking with him to

independent bid has to be shaking the foundation right now of the rnc and other candidates. it tells us a different type of candidate. >> dickerson: that line about, he doesn't really mean all of this it will be different when he's in office what liberals used to say about john mccain. he doesn't mean all of that. jamelle, let me ask you one of the criticism of the media of other republican has been they don't press trump on his facts. if only people knew that he wasn't telling the truth in some is in stances he wouldn't have all this support. that doesn't seem to be true having watched that focus group. >> not true at all having watched the focus group. whether it's ever been true ever. they are immune to truth in fact and so on. very few people look at collecting information then make decision. they made the decision based on all sorts of beliefs then look for the information to justify it. one real quick thing about the panel or the focus group, is

that my inner social scientist saw, a living representation of something that many sociologists have been noting over the course of the obama administration is disstrength rise in racial resentment and anti-black attitude in the wake of 2010 and 2012 among all groups, all groups of white democrats, white republicans, especially white republicans, increase in racial resent channel sort of measure of social scientists use to determine a person's attitudes about african americans, particularly other groups. trump's supporters show all the hallmarks of people with high levels of racial resentment. they are -- seem good number believe that president obama is unamerican or maybe even a muslim connected terrorist, good number refer to him as arrogant and elitists for myself leads very much like upity as old

insult towards african americans who have achieved some sort of stature and mainstream society. all these things, i see in that focus group and connect back to real hard battle we have about the change in racial attitudes. >> we had frank lunz say if there hadn't a president barack obama there wouldn't be candidate donald trump. you did hear people who are maybe uncomfortable with african american president but are not happy with the rise of important new part of the american electorate even climate change treaty we know from polling that trump supporters not believe in climate change here is president and a time that has -- and nation that has moved in direction that made many trump voters generally uncomfortable fueled his support. >> dickerson: governor kasich said, this is small group, it's not the republican party more broadly what is your sense? >> they reflect a general mood of the country. i'm not sure i entirely agree point about trump and facts.

he is a brilliant marketer he's so good as what he does. it was no accident he came out with that muslim comment next day after a lackluster speech by a president who looked disengaged and had no new policies for the nation. he comes out and says this. and he loves it when people then say, he's a racist. because it diverts attention away from the policy. the policy just -- it's a bad policy. there's no real way to implement it. there's no proof that it would be effective in stopping another san bernadino. potential ly very bad idea f. we want to win gin the terrorists in the middle east have to make coalition with moderate muslim forces, this does not help us. the pity is that republican candidates aren't talking about that. because this might actually have effect on trump and his presidency. >> why are they not talking about that? they seem a little afraid. yes, they say bad trump then they move on. there's nobody -- why is that? >> because he just manages to say these things that are so

inflammatory they have to respond on emotional level make some sort of moral statement about donald trump. and the rest all gets lost. he loves it when that happens. >> dickerson: go ahead. >> i think the focus group gave some of an answer half said that trump ran as independent would support him. if you step back you're republican official this is terrifying. if for some reason you anger trump or do something to get trump on the bad side of the party at large he leaves for independent you just torpedoed your party's chances for the white house. the republicans politicians and officials are kind of -- they're trapped, i'm sure you can look at their body language what they say just denounce trump with all of the fire in their belly but afraid if they do they risk reaction which they cannot control. so it's this hostage situation. >> dickerson: this may be a situation where you have denunciation of trump and then

none of the candidates, no one will say, but if he's the nominee i won't support him. we haven't gotten to that contradiction seems strong but it's there. >> it is strong. like gentleman nell said they don't want to push him out. they know it's over. so, hear jeb bush, really have hard time supporting donald trump as nominee saying well -- they want him to fall on his own weight then go away. they don't want him to be a continuing protest against the system because then system loses. >> good luck with that. because i don't see how you look at development now and polling we have now not conclude that either drum will republican nominee or end den dent candidate for president only now do you see republican official trying to grapple with what that means. not only for losing the white house but for losing republicans control of the senate and for what it means for the future of the republican party. >> i'm not sure i agree with that only just because not that i would deny trump support has

been consistent. but what we have also seen just in the last few weeks is that in fact events can shake up quite dramatically, still very fluid. chris christie is now number two in new hampshire. ben carson's support has fallen off dramatically. ted cruz now leading donald trump. i think you as you get closer to these things some more people drop out of the race's dynamics shift. >> dickerson: let's talk about that trump out cruz. trump is denouncing that, but watch what he does not what he says. watch what he said, listen to what he said on fox news sunday. >> i don't think he has the right temperament. i don't think he's got the right judgment. >> what's wrong with his temperament. >> the way he's dealt with the senate he goes in there like -- frankly like a little bit of maniac never going to get things done that way. >> dickerson: he's talking about senator ted cruz there. and that suggests he feels a

little heat from senator cruz. senator cruz has not attacked donald trump and he says he's only a counter puncher. >> first a great way of putting the way cruz's approach. he's always said -- donald is great, i don't have same policy on this but he's great. he didn't say trump had the right judgment, trump is obviously fighting back in that sense. but it's the polls, trump goes after whoever he sees as threat now sees ted cruz as a threat. a little funny to hear donald trump suggest that another candidate might have problem with temperament and judgment going in to talk with the senate. but, yeah, say what he needs to say. >> dickerson: kim, ted cruz has patient strategy he's been playing out here. is this his moment to grab that when -- give us your sense. >> he's doing very well. i also think he has couple of liabilities which you saw this week, fact that he felt compelled to give national security foreign policy speech, this goes one of the clever

strategies way back he was going to get all these rand paul voters, there are fewer of them in the republican electorate, post paris and post san bernadino he's out there on questions of metadata a little bit more restrained in terms of foreign policy. lot of republican voters who want very muscular foreign policy leader he felt compelled that he had to go and shore himself up on that in terms of a speech. you're going to see in this debate this week i think lot of republicans who are eager to hit him on that. chris christie, jeb bush, marco rubio, interesting to see how he does. >> dickerson: is marco rubio have to do something something now, the conversation is now cruz and trump debate coming up, marco rubio has had goody baits he's tried to make something that have nsa vote -- what he sees as ted cruz's lack of support for the metadata analysis by the nsa. what is your sense of marco rubio? >> i think rubio should just continue doing what he's doing.

steady increase in the poll. going up slowly. in places like iowa, but there's been steady increase he has given great debate performances, he seems to be on everyone's good side of the republican party. so, if i were rubio i don't think any more that you can do at this point other than see what happens with the other candidates. at certain point if rubio can't get over a hump may have nothing to do with rubio everything to do with the republican primary right now. i will say that there is concern that rubio is not running as good of ground unit as he could be unioning. comments made by republican officials in iowa and new hampshire suggest rubio not spending much time. congressman rubio come pain he needs to spend that much time. that to me, anything concertained about rubio that to me is that i think old fashioned in that regards, to win the states you have to invest time and energy in the people there. rubio campaign seems to differ. the cruz campaign notably very

much believes that you have to invest time and effort into winning the states. >> dickerson: being maybe election is now nationalized you don't have to do what you used to have to do. let's not leave without talking about a broken convention. usually something only talk about in our fantasies now there was some coverage of it this week. what is your thoughts on the idea of a broken republican convention? >> first of all i'd like to vote in favor because how much fun would that be to cover? republicans haven't broken convention since 1948. but i think you could see how it would happen. happen with -- evangelical voters going with ted cruz. ben carson's days are over. who is establishment republican candidate, can that be rubio. have one candidate that could stand up to the force that is ted cruz and donald trump. if you have a three-way split like that, that is the recipe for a broker convention.

>> dickerson: nobody has delegates when they get there, there for has to be managed in the moment. >> you have a second ballot. if candidate doesn't win on the first you have a second ballot. then those people who were elected, delegates elected in primaries are no longer required to vote for whoever won their primary. under all these complicated rules, it goes state by state what you are allow to do. >> opens up the doors to the kind of politicking that we haven't seen in quite some time. >> back room politicking. dickerson: final question, this was seen not by certain candidates in the race attempt by establishment to tinker with the process. is that really what this was? >> i think what i understand the numbers of the rnc sat down were having discussion about what would happen if this or case where people get very, very touchy about stuff like this. i think we got long way to go before we get to brokered convention. got 14 candidates going into iowa see how many come out of iowa on the other end.

this could actually winnow down. >> dickerson: let voters vote before you decide how you're going to work on that. all right. we'll be back in a moment. ♪ ♪ it's the final countdown! ♪ ♪ the final countdown! if you're the band europe, you love a final countdown. it's what you do. if you want to save fifteen percent or more on car insurance, you switch to geico. it's what you do. made a simple tripvere chto the grocery storeis anything but simple. so finally, i had an important conversation with my dermatologist about humira. he explained that humira works inside my body to target and help block a specific source of

inflammation that contributes to my symptoms. in clinical trials, most adults saw 75% skin clearance. and the majority were clear or almost clear in just 4 months. humira can lower your ability to fight infections, including tuberculosis. serious, sometimes fatal infections and cancers, including lymphoma, have happened; as have blood, liver, and nervous system problems, serious allergic reactions, and new or worsening heart failure. before treatment, get tested for tb. tell your doctor if you've been to areas where certain fungal infections are common, and if you've had tb, hepatitis b, are prone to infections, or have flu-like symptoms or sores. don't start humira if you have an infection. ask your dermatologist about humira. because with humira clearer skin is possible. >> dickerson: we're back with richard burr. senator i want to talk about these investigations. the fbi searching, you're in a

lake near san bernadino near the scene of the terror attack. what have they found, what are they looking for? >> they're looking for anything that would give us a clue of the digital footprint of these two individuals who they talk to, where they went. they were gone between the attack and the time law enforcement engaged them. they were on the move for three and a half to four hours and trying to sort of fill in the blanks, where were they. using cameras from the city itself from, convenience stores, trying to recreate exactly where they went, who they might have talked to. >> dickerson: investigators trying to recreate what they were doing in two years before actual attack. what do we know about what the plot appear to be two years in the making or previous plots they might have been involved in. >> clearly we now know that these individuals were radicalized way before probably as early as 2010 for him. and 2012 for her.

we want to look at how our immigration process, visa for spouse broke down this they didn't notice the radicalization. more importantly what we've got to know is who they might have had conversations with relative to their planning, access to the weapons. they didn't just overnight learn how to make 19 pipe bombs. >> dickerson: that's right. and there was a lot of conversation, but his wife satheen malik online, social media, that was missed? was that missed it was missed obviously. should there be something more done in terms of monitoring social media? >> john, today we don't know how much that have might have happened in closed-in systems, encrypted. closed end to end. and what we've seen with paris and now with san bernadino, terrorists who are committed to destroy their digital footprint

to, destroy phones, to take hard drives, i'm sure that the fbi was in the lake trying to find if there was any that have electronic media in the lake. that they can go and trace the conversation, is that took place. let me just say today, encryption is becoming more and more problem with our ability to see inside of the communications of individuals both in the united states with each other and with people abroad. >> dickerson: it seems like there are two issues. one is conversations having just out in the open but there are so many going on and can you take social media conversation and trace that back, might just be somebody blowing off steam that's one thing that seems to have been missed here. not all this was encrypted. it doesn't seem like any evidence that it was. >> understand we have two people who legitimately, legally were in the united states, one lived here for years. nobody on a watch list, no fly list. how would we have detected them unless a neighbor had raised an issue with law enforcement. >> dickerson: right. in social media may not be

possible to find -- let's talk about encryption. do you want to do something, silicon valley companies say that you can't create a back door that gets -- encrypted system that has back door for law enforcement also creates back door that makes your encrypted information vulnerable. >> johnf we changed, were talking about terrorism or pedophilia and the fbi is trying to make a law enforcement case against somebody sending photographs of a kid to another pedophile. would we want -- legitimate court order to be able to make that case based upon what they were transferring in encrypted networks. the answer is, yes. by the same token if we have legitimate core report -- report order that law enforcement can act to look at the communications, i believe that's probably i believe that it's absolutely needed in the future regardless of what the

investigation might be in titled to. >> dickerson: i want to get your assessment the national secure about barring muslims from the united states. is there secretary kerry suggested something can be used to incite and recruit. do you believe that to be the case? >> owe had iraqi interpreters that served with u.s. troops in afghanistan. many lost their lives or were injured. out of the last five coalition battles around the world, only three countries have been at our side every step of the way. one was united arab emirates. how do you tell bahrainian pilots that fly, you're good enough to fight against isil but not good enough to come in the united states. huge mistake. this sends the wrong message to people that have to be part of our partnership forces. yes, does serve as -- i'm not concern ld about international i'm concerned about radically occasion here, people who are already in the united states

that does tend to be the case. >> dickerson: thank you so much. we'll be back in a moment to take a closer look at the climate change agreement. every year, the amount of data your enterprise uses goes up. smart devices are up. cloud is up. analytics is up. seems like everything is up except your budget. introducing comcast business enterprise solutions. with a different kind of network that delivers the bandwidth you need without the high cost. because you can't build the business of tomorrow on the network of yesterday.

>> dickerson: joining us now is dr. marshal, weather channel meteorologist director of the university of georgia's atmosphere rick science program. dr. shepard the basic question, why is this two degree temperature goal, atmospheric temperature goal as part of this agreement why is that so important? >> yeah, that's a great question. one that i really tried to address just this morning in my most recent column. where did that come from? two degrees really was put forth back in the 1907s as a target threshold by economists at yale that the scientific literature suggested that that is likely the tipping point for some of the irreversible changes in the climate system that we as scientists worry about, continued locking us in for sea level rice, agricultural productivity, we think that is the threshold for some of the irreversible change. >> dickerson: if that is the

tipping point did this agreement do something to get towards that? is it going to meet -- miss the tipping point? >> we think it gets us half way there. it's a starting point. it was my birthday yesterday when i heard about the agreement, what a great birthday present. it gets us half way there one of the really interesting if you wade through details of this new agreement it really in five years out requires countries to be more aggressive about some of the their targets as we move forward. that is very important for us. >> dickerson: if it's only 4568 way there, how do we get to the other half? >> i think that's where we see this cascading or rolling or building in terms of the targets that see 195 plus countries agreed. to i want to make the point that it's very different from previous agreements which left some of the biggy mitting countries like china out. what is important about this particular agreement that it

brings everybody in gets commitment from everyone to reduce their emission levels, part of this mitigation of climate change. also has key provisions for -- some things are already going to happen we need to adapt to it. >> dickerson: i.t. not just in terms of meeting this crucial tipping point or avoiding the tipping point not just made up the agreement there needs to be constant vigilance in terms of keeping these goals. >> that is correct. this is really the start of something that will cascade or roll through the next several decades. it requires countries with accounting of these reductions also requires these countries to actually in the next reporting period out three, five years to actually produce more aggressive targets as well. that will be key to keeping us at that level. one of the interesting things i want to note, there's even language in the agreement that tries to keep us at one and a half degrees because there's some studies in the peer review

literature that suggests that some of the island-bearing nations some of the more developing nations may be more vulnerable even at one and a half degree of warming. >> dickerson: there was anything else in the deal other than the goals that you think is important in terms of addressing climate change? >> yeah, i thought one of the really interesting things that jumped out for me, one, was the really emphasis on role of deforestation and changing landscapes, that in its way, if we lose forests those are -- there's really strong language in there in terms of deforestation and preservation of landscape. the other thing that's really important for me in this, i know that there's some that are worried about economic impacts, it really -- many corporations, the u.s. military are very much in support of some of the things that we saw in this. this is not just about a bunch of egg-headed scientistss like we worried about the climate or environment. 150 corporations are now signing

on in those aspects i think that is key. >> dickerson: okay, great, thank you so much for your help this morning. thanks for join us. we'll be right back. the artific, electric guitars and rockets to the moon. it's the story of america- land of the doers. doin' it. did it. done. doers built this country. the dams and the railroads. ♪john henry was a steel drivin' man♪ hmm, catchy. they built the golden gates and the empire states. and all this doin' takes energy -no matter who's doin'. there's all kinds of doin' up in here. or what they're doin'. what the heck's he doin? energy got us here. and it's our job to make sure there's enough to keep doers doin' the stuff doers do... to keep us all doin' what we do.

>> dickerson: that's it for us today. thanks for watching. until next week for "face the nation," i'm john dickerson. captioning sponsored by cbs captioned by media access group at wgbh access.wgbh.org

>> good morning happy sunday fun day. from linc. it is a gorgeous day. don bell hanging out with leslie van arsdale. pat gallen is going to join us in a few moments. along with mel reese. supposed to be around 70 degrees. as the 5 and