Another police agent shot back and killed him. The italian interior minister says without a doubt this is anis amri. We are not sure how he was identified but they did have his fingerprints off of the truck here at the market to go from. Chris . All right, chris, thank you very much. Stay with us to weigh in on this conversation. Lets bring in cnn terrorism analyst and editor and chief paul crookshank. And we have counterterrorism analyst phil mudd. Phil, you and i have been corresponding off camera here about the reporting. The concern is its not just this guy. Not just this market and you have Different Countries now weighing in on what the plots could be, how these are related and whos responsible for this guy getting that far away, even french intelligence Authorities Saying he must have gone through france to get to italy. Did he go through pairs and did we miss him, too . What is your take . Well, yeah, he went through france. We know that now and then by train to italy, a country he spent quite a few years in and was imprisoned in for quite a few years, as well. He could have been wearing a baseball cap, some sunglasses, something to disguise himself. That made it easier for him to travel all the way to italy from germany, despite being the most wanted man in europe. It remains to be seen whether he was getting help from this isis recruitment a Logistical Network he was part of inside germany. A lot of questions, why did he go back to italy, a country he spent all that time in. Was he on his way to the middle east perhaps in an attempt to join isis as a sort of all conquering hero in his imagination. He had been desperate to go and join them last christmas and had been prevented from doing that. There are a lot of questions on how he managed to get all the way to italy. Could he have been wanting to launch another attack, perhaps in italy, a country that imprisoned him for all those years . He still had a gun if he wanted to go and hijack another truck. Its far from clear, though, chris. Well never know the answers given that he is now deceased. So, phil, sometimes Law Enforcement, as you know, get their man through investigation and sometimes they get lucky. And today, this one, seems like a lucky break. Youre disagreeing. Why . There is no luck in this business. The man went down. Give the Law Enforcement guys some credit. I think that is great. One of the things we talk about in this country, seriously. If you look in new york city where you are. If you see something, say something. Two options for this individual and this case. Go to what you know. The people who radicalize you and the people who have a network of individuals who try to funnel terrorists into syria or go to what you dont know. Hoping that somebody sees you and hoping that somebody sees something unusual. In this case, Law Enforcement is trained to say if you see something unusual outside of a train station, stop them. Some luck involved here and great policing in terms of saying if something looks odd, especially in this tense situation, do something about it. Same thing id say for new york city, alisyn. A lot of unknowns here still. Was this attached to other ones . Are there other people involved in this plot that may be involved in other ones. Ben wedemen that takes us to italy. They have been very cautious not to give out too many details with this altercation with this suspect because nay say this is a broader investigation. What could that mean . Well, probably what that means is that, indeed, there were individuals to whom amri was going to. He spent several years in italy. Arrived in the beginning of 2011. Spent years in prison. Six prisons in total in southern italy. He had context. He knew people and its widely believed he was radicalized during his stay in the italian prisons. Therefore, clearly, he was returning to where the part of europe he knew best. That was italy. Now, the question is, why did he, when he arrived in milan at the central train station, why did he go to this train station on the outskirts of milan. This is probably the lead investigators are pursuing, he knew someone. He had a contact in that working class neighborhood. And, clearly, they want to get to the bottom of that. But, italian intelligence has decades of experience following terrorist organizations. Going back to the 1970s with the red brigades. During the 80s there was a problem with Palestinian Terrorist organizations. Hard far right extremists groups operating here. The italians have a lot of experience in dealing with a variety of kinds of terrorists. And this is really very much within the context of what they have been working with for years. So, yes, theyre clearly running up these leads and this neighborhood outside milan is one area theyre going to look very closely at. About those leads. Paul you were reporting active raids happening in different towns and cities. What is happening with the Wider Network that he was connected to . Well, there were two arrests of two kosovo nationals overnight in northwestern germany in the exact same area where this isis Recruitment Network the Abu Walaa Network was most active trying to brainwash youngsters and to recruit them for isis. Those two individuals, according to german investigators, were potentially planning to launch an attack on one of the largest shopping mauls in europe, in that area of northwestern germany. And, also, potentially, against a Christmas Market. So, they may well have had a connection to the berlin attacker because they were operating from the same area. An area where this abu walaa Recruitment Network has radicalized towards violence. A generation of young german extremists. This is a reminder that the system is blinking red when it comes to the terrorism threat in europe right now. Its really all across western europe. You think of belgium, holland, the uk, france, italy, spain. We could see something happening in any one of those countries and more. Isis are putting out a clarion call for their sympathizers in the west and any opportunity to get in there and launch attacks during the holiday season. Because they think thats going traumatize western population and change the time when theyre losing ground in syria and iraq. Phil, quick lesson. Any intel from here on what is going on at germany and italy and abroad . One question Going Forward. With somebody with this kind of background with characteristics that would put you in the top tier of terrorists. How did you prioritize him to the point that you missed this attack. There is a brotherhood amongst Us Intelligence professionals. But how did you decide this guy didnt deserve top priority . Thats the lesson i want to learn. Gentlemen, thank you for your reporting and, phil, your expertise. More breaking news right now. This out of malta, reports of a hijacked plane landing with more than 100 people onboard. Lets get the latest from cnn Foreign Correspondent ian lee with the details. Theyre still onboard. Is this still unfolding, ian . There was an internal flight when we are hearing the plane was hijacked. Reuters is reporting that the hijackers refused for the plane to be landed in libya. It was diverted to malta. Hearing from the Prime Minister that currently the Security Services have secured the area. Not much details about what is Going Forward on the tarmac at this moment, but we do know that there was 111 passengers on the plane, according to the Prime Minister. 82 males, 28 females and one infa infant. The Prime Minister having an emergency meeting to discuss this ongoing situation. The plane coming from suba. A plane in southern libya that had recent turmoil. A conflict between two warring crimes. Things to take and consider as this story develops. Ian, do we know with any clarity whats happening on that plane right now . We dont. We havent heard what is taking place. Presumably there are negotiations taking place to get these people off the plane. But it is important to note that this plane was hijacked and the hijackers allowed it to land at an airport. So, Going Forward, this is something that we have seen in the past a man in egypt last year hijacked a plane. That plane landed in cypress. So, it rules out, well, it doesnt rule out, but it does make it seem less likely that hes are people intent on killing them. They may have some sort of political demands instead of just trying to carry out a terrorist act. Understood. Thats important. Thank you, ian. Also an interesting trajectory going from north africa off shore to malta. Leaving an arab stronghold and then landing in a christian one. Odd the circumstances. Well see what that means. Coming up, the latest on the shootout with the berlin attacker and more on that hijacked plane behind what could be the motive. Also, president elect donald trump taking to twitter on important policy issues. Nuclear build up. Israeli settlement. Also now tweeting in defense of his sons fundraising. Next. Afoot and lighthearted i take to the open road. Healthy, free, the world before me, the long brown path before me leading wherever i choose. The east and the west are mine. The north and the south are mine. All seems beautiful to me. We turn feelings. Into jewelry. Jewelry that tells her shes the best thing thats ever happened to you. In a way that goes beyond words. It could be a piece jewelry designers created just for jared. Or a piece we custom made. Just for you. Because were more than a store that sells beautiful jewelry. We are jewelers. The one, unique gift. That tells her exactly how you feel. Thats why he went to jared. Ways wins. Especially in my business. With slow internet from the phone company, you cant keep up. Youre stuck, watching spinning wheels and progress bars until someone else scoops your story. Switch to comcast business. With highspeed internet up to 10 gigabits per second. You wouldnt pick a slow race car. Then why settle for slow internet . Comcast business. Built for speed. Built for business. President elect donald trump liked it use twitter and facebook during the election to get tredirectly to you. He is holding true now about sophisticated policy decisions, also. Nuclear weapons hes talking about on twitter. Military jet contracts. Settlements in israel and what the u. S. Should do before the u. N. These are heavy topics that are being dealt with in a very brief fashion. All still weeks before he is actually president of the United States. Cnns Boris Sanchez live at trumps vacation resort in maralago. Chris . Anyone who thought that donald trump might change his rhetoric on social media after the election in a series of eyebrow raising tweets yesterday, he proved them wrong. Some very controversial tweets about International Relations that are continuing a conversation about how the president elect handles himself on social media. President elect donald trump shaking up International Relations weeks before taking the oath of office. On twitter, trump tweeting that the u. S. Must greatly strengthen and expand its Nuclear Capability until the world comes to its senses regarding nukes. Bucking almost 50 years of historical precedent against nuclear. This pledge coming hours after Vladimir Putin spoke about strengthening russias arsenal. A nuclear arms race. Its difficult taknow what to make of it all. Were committed to our new start obligations with russia and, again, maintaining a Strong Nuclear deterrent here in the United States. Reporter trumps team attempting to clarify the president elects tweet hours later. He actually meant he wanted to prevent the threat of Nuclear Proliferation. The opposite of what he initially tweeted. Trump also openly undermining president obama and signaling a major shift in diplomatic policy in another unprecedented move via social media. Calling for the Obama Administration to veto a u. N. Security Council Resolution condemning izraissi settlement. The Israeli Government reached out to trump directly asking him to intervene. The egyptian president putting the vote on hold after taking a call from the president elect. Nobody here felt boxed in from a tweet from the president elect and hes perfectly entitled to express his views on these kinds of things. Reporter trump then using twitter to take aim at a major american company. Defense contractor Lockheed Martin, threatening to replace the pentagons costly new f35 fighter made by lockheed with a less expensive plane made by boeing. Costing Lockheed Martin and its shareholders millions in market value. Despite backlash, trumps team signaling that the president elect will continue his use of twitter. He has a direct pipeline to the American People. To talk to them in a way that no ones done before. I think its fascinating. Now, i should tell you, alisyn. There is a report that trump responded to questions about that tweet to a journalist on another network saying, let it be an arms race. We will outmatch them at every pass. Interestingly this comes just a few hours after Vladimir Putins state of the union press conference in russia, in which he said that trumps comments about nuclear armeorment are nothing new. You have given ocelot to talk about. Joining me now is the democratic senator from delaware who sits on the committee on Foreign Relations. Good morning, senator. Good morning, alisyn. Lets talk about mr. Trumps tweets that have caused quite a stir this morning. Lets just start with what he is saying about the Nuclear Arsenal. He is tweeting the United States must greatly strengthen and expand its Nuclear Capability until such time as the world comes to its senses regarding nukes. How do you interpret that, senator . Alisyn, this is just remarkable. Demonstrating Donald Trumps ability to grab the wheel of the bus and jerk it sharply right or left and then really dominate the news of the day. But i think the American People deserve a more thoughtful and deliberate consideration of something as fundament to our safety and security as Nuclear Proliferation than 140character tweet in the middle of the night. My advice to president elect trump is put down the phone and start getting your daily briefings and consult with professionals. We have spent decades reducing the size of russias Nuclear Arsenal and our Nuclear Arsenal. Nuclear nonproliferation has been at the core under president s of both administrations, of both parties. So, my hope is that this administration will take a slightly more settled, seasoned view of an issue as dangerous and difficult as expanding our Nuclear Arsenal. Why do you have hope about that . I mean, given i mean, you know because i choose to. Yeah. I mean, senator, this is what is confusing and certainly confusing to cover because the Transition Team after he sent out this tweet. His Transition Team said, whoa, he meant to prevent any nuclear action. They were doing what you suggested and taking a more measured tone and then this morning on a different morning show mr. Trump called in to sean spicer and sean spicer related it to the host who then said that actually what he said was let it be an arms race. We will outmatch them at every pass. Now, this was a game of telephone. So, its hard to know here, senator, what to take literally. Well, alisyn, in International Relations as in business, predictability is important. And conducting Foreign Relations by tweet in the middle of the night without Consulting National security advisors. Without preparing them carefully can lead to dramatic and dangerous misunderstandings around the world. What ive always heard senator, i hear you. Thats exactly whats happening. I understand thats what you want. You want a more measured approach, but thats not happening. These things are being tweeted out. How does Congress Respond . Well, my hope is that the Foreign Relations committee will begin to communicate with the Senior Leaders of the trump administration, Rex Tillerson and others as they come in about the dangers that this is posing to the United States position in the world. Kellyanne conway, the Third Campaign manager for donald trump was successful in no small part in the last weeks of the campaign because she got him to stop tweeting in the middle of the night. You may remember the 3 00 a. M. Twitter war he got in with the former misu eer Miss Universe a that harmed his standing in the election weeks before the election. In the last weeks of the election, he largely stopped doing this. My concern is that this unsettle our allies an