Cruelty. The wanton murder of children. The enslavement and rape of women. Remembering kayla, her hometown gathers to honor Kayla Muellers life of service as shes remembered by her brother eric. My heart aches for you and what you went through. I have a hole in my soul that will never be replaced. Signing up, 11. 4 million enroll in the president S Health Care plan by the deadline. Are all of the wrinkles ironed out well talk to the health and hul an services secretary. Frozen february six winter storm in three weeks and the deep freeze now includes 100 million americans. Reporter several more records will be broken today and tomorrow as the cold air surges in from the siberia express into the eastern half of the United States. Here in Niagara Falls were on track for one of the coldest februarys on record. Good day, im Andrea Mitchell in washington. President obama told participants at the summit today that the world has to unite to defight terror groups like isis or isil. Its not a christian of jews or muslims, were in the same boat and have to help each other to get out of this crisis. Im joined by rick stangle, direct from the summit. Thank you very much for being with us today. First of all, youre heading an office that is going to try to counteract the isis propaganda. There have been other state department attempts before you over the decades tonteract propaganda but isis is the most adept shall we say of any of these terror groups at using online media. How can you counteract this . Well andrea we are trying to counteract them and one of the things we say, they are not invincible on the battle field or information battle field. I think we were a little surprised about how adaptive they were and sophisticated they were in online media. We estimate that they do 60 to 90,000 pieces of social media a day, which is much larger than what we do. Were trying to increase volume by aggregating content starting this creating this new entity which the president mentioned today and its new head who we put in who represents a different face of the world for messaging. What i also tell people, while they are doing 90,000 pieces of social media a day Justin Bieber tweets a million a day. The full force of military from the air, how do they have the space to work this effectively online . Its a very good question. We dont know all of the answers. The intelligence community, and were finding out all the time how they operate. Some part of the antiisil messaging is the stricter more rigid part which is denial of service and platform. Were doing that as well as actually reaching out to the people as the president said today who are susceptible to the message and not involved. Young men in particular who they are trying to isolate. Were trying to reach them as well with a different kind of message that says they are not what they are cracked up to be. The caliphate doesnt exist. They cant manage the land they are gaining and you shouldnt go there. Well, at the same time, we see them now in libya, having enough territorial space and coopting the militias since the overthrow of gadhafi and enough space to execute 21 christians and see them now, they are spreading out and they were five miles from a base in Northern Iraq where there are hundreds of Marines Advising Iraqi troops and five miles away theyve taken over al bag ddhdadi and burned to death, 48 people. What i would say about that im not a general or military person understood. One of the differences between isil or dash then al qaeda, al qaeda was a nonstate actor. They werent trying to accumulate land or territory. The fact that isil is trying to conquer land and manage it is an opportunity as a military force, its easier to combat People Holding land and trying to government it than it is to combat people who are nonstate actors. I think thats an opportunity. Do we know anything more about the English Speaking executioner of the christians in libya who seem to have a north american accent . I dont know the answer to that. I would refer you to the state department or Defense Department or white house on that. And i wanted to ask you about the controversy critics saying that the president is being politically correct, parsing words and not calling the muslim extremism what it is and not calling it out. How do you respond to that . Well i would say all members of isil are violent extremists but not all extremists are members of isil. The summit is about more than isil even though i isil is the most acute problems. The president and secretary talked about combatting violent extremism as this generations greatest challenge and of course the biggest part of that is isil. And i know you dont do politics, youre in the diplomatic sphere now, but i have to ask you about a prominent critic seizing on this criticism of this summit Rudy Giuliani last night at a republican gathering said i do not believe and i know this is a horrible thing to say, but i do not believe the president loves america. He doesnt love you and doesnt love me. He wasnt brought up the way you were brought up and i was brought up through love of this country. What do you say to that . Im just sorry to hear that. I find it wrong in every possible way that could be wrong. I think the president loves the country in an extraordinary way. Hes an american exceptionalist but with a slightly different attitude. What he said this morning, our job is not to tell you what to do. Our job is to be your partner. Thats a Different Division of power in the world and that is the vision for American Power in the 21st century. Thank you very much rick stengel from the state department and summit. Im joined by robert ford, the former ambassador to syria, now a senior fellow at the middle east institute. You left retired from the state department frustrated i think its fair to say by the policy by the policy that led to a civil war where we were not being engaged as aggressively as you felt we should be. Yes, we could see the extremism rising in syria in 2012 and 2013. And its reached the point, i was just in turkey two weeks ago and met with some people from the Syrian Opposition there and they told me a story that i think is indicative of the problem in syria. One of the goal tenders of a major syrian soccer team joined the uprising in syria in 2011 it was peaceful then as fighting took off when the Syrian Government began to shoot and kill people and protesters responded to defend themselves this scorekeeper, goalkeeper then joined and became a commander among the fighting men. For two years in the city of homs they are surrounded by the Syrian Government and starved children starved to death. Women starved to death. Men starved to death. Finally the United Nations after two years of this siege by the Syrian Government negotiated a ceasefire and the people were able to leave. That goalie from the soccer team, has joined the Islamic State. Now the Islamic State just killed children in iraq for playing soccer. Why would he join Islamic State . One of the people i just talked to just talked to the syrian goalie a couple of weeks ago. And the goalie said the world watched for two years while we were bombed, while we were starved and nobody lifted a finger. Nobody has any business now giving us lessons in civics and democracy. And that kind of repression has added to the extremism problem that we have in the middle east. That example is exactly what rick stengel and his new unit at the state department is going to be up against. How do you reach out to these people when they have seen these are people who are joining the Islamic State from the opposite side. You in 2011 were pelted with tomatoes and had to escape as you were still ambassador before we closed the embassy. We have pictures ever your car escaping from the crowd, the apgry crowd there. It was a Syrian Government inspired mob, Syrian Secret Police organized a mob to ambush us. And at the time people were stunned frankly by your personal courage in staying as long as you stayed. But you finally left the Diplomatic Service because this administration in your view did not move and take a stand when it could have. I dont first of all i wouldnt diminish how difficult the problem in syria is. Understood. But at the same time, inaction or too little action is a policy decision. And in the end, what we have seen is the rise of extremists. Had we helped moderates who were in competition with extremists and had we helped moderates back in 2012 and 2013 not saying we would have had no extremism but we would have had much less extremism. At the same time watching the Syrian Regime pound civilians just as watching shia militia murder sunni arabs in iraq these things aggravate an extremism problem. So again, inaction itself can cause additional problems. When you topple gadhafi in 2011 and then let the militias take over leave the embassy last july the americans evacuate, its not surprising that the Islamic State or whatever you want to call them isis or is il move in. In all of these places you have states who have ultimately weak because they are o oppressive they become quite brittle. The response to these sorts of situations is to bolster people who believe in politics and b, believe in reaching out to other communities and finding Compromise Solutions instead of trying to impose extremist ideologies. And that we needed to do in libya. That we have needed to do in syria. That we still are trying i think making a good faith effort in iraq in syria and libya, its much more difficult to be optimistic right now. And to counteract their online propaganda . With all due respect to undersecretary stengel and hes got a great team i know some of them, hard working people a lot of them are regional experts, but they are going to be fighting with an arm tied behind their backs because when a lot of young people in the middle east today in the arab world think of the United States they think of the prison abuse in iraq ten years ago. They think the guan tam mow, its not an accident that the Islamic State dresses up its prisoners in orange uniforms they are specifically reminding people about the americans and guantanamo experience. So its much more useful to have im imams and those with street cred. My pleasure last night in prescott, arizona hundreds came out to remember kayla mueller. A message was posted from kayla. I hope i never forget that everything happens for a reason and that nothing should be a regret. And that youre always learning about yourself through our people and always learning about life and that process never stops. At the prayer vigil wednesday night, kaylas brother eric mueller spoke about his loss. You were my first friend my best friend and my only sister. My heart aches for you and what you went through. I have a hole in my soul that will never be replaced. May god keep you from any more harm, any more hurt. Youre in his hands now. You do not have to suffer anymore. Only now will you be able to see how much you really did and truly did for this world by looking down on it from above. I love you. You can rest in peace knowing you changed this world. I miss you so much and im lost without your smile. Ameriprise asked people a simple question in retirement, will you have enough money to live life on your terms . I sure hope so. With healthcare costs, who knows. Umm. Everyone has retirement questions. So ameriprise created the exclusive confident retirement approach. Now you and your ameripise advisor. Can get the real answers you need. Start building your confident retirement today. Here i am. Rock you like a hurricane. Fiber one now makes cookies. Find them in the cookie aisle. Today a federal Appeals Court heard arguments from accused Boston Marathon bomber Dzhokhar Tsarnaevs attorneys. Nbc justice correspondent Pete Williams joins me now. What is their argument for the change of venue. Theyve already done jury selection so jury selection is in process now, chosen about 51 of the 70 jurors according to the latest reports from the court. Andrea three times the trial judge has said no to a change of venue. The defense argues that theres been such saturation coverage that the entire city was victimized and that they say based on what the potential jurors are saying in questionnaires, there seems to be a majority who think hes guilty and nearly half who cant set that aside and make an impartial judgment. It didnt appear today they were going to get the change of venue. The court seemed to be 21 against it and theres nothing that happened today during the oral argument that would indicate its anything but a 21 against. Nonetheless, this is the furthest the defense lawyers have gotten in the previous times the trial judge and Appeals Court has turned them down solely based on written motions. At least today they got to make their argument in person orally. Pete williams thank you very much on the tsarnaev trial. Speaking of boston everyone in boston knows and so does more than half of the country. It is really cold. And the weather forecasters tell us theres no sign of any relief until the end of the month. Sometimes though theres some beauty if all of this pain. For a look at that we turn to nbc meteorologist dylan dreyer at Niagara Falls. Reporter andrea it is extremely cold. We started off the day at 3 degrees below zero and this entire february in the Niagara Falls area we have not gotten above freezing. Thats why were seeing this absolutely gorgeous sight behind us this is the partially frozen Niagara Falls. The river itself freezes but the falls will never freeze because theres too much water rushing way too fast. You see the mist and water that splashed up from the rushing falls, that creates these incredible ice formations and thats what were seeing on the canadian side and american side as well. That is all part of the extremely cold blast of air that is originating in siberia and pouring down and affecting the eastern half of the United States. Record low temperatures were seen in nashville, pa duke ka kentucky and ashville, well see colder temperatures by friday morning. 1899 was one of the coldest periods in United States history, were going to crush some of those records by as much as 5 degrees. Were in an exceptionally cold period but i guess without the cold you wouldnt really have this pretty sight here at Niagara Falls. Its very beautiful from at least inside the warm studio. I dont know about poor Dylan Dreyers location though. Up next, politics. Rudy giulianis controversial comments about president obama. This is Andrea Mitchell reports on msnbc. vo after 50 years of designing cars for crash survival, subaru has developed our most revolutionary feature yet. A car that can see trouble. And stop itself to avoid it. 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