time's square, extrapolice and on bridges and tunnels, more random checks of trucks. and a scramble to turn out oo visible show of force. nation wide fbi agents are surveillance of terror suspects, on the lookout for possible copy cat attacks atey say there's no known threat of a brussels attack. overwhelmed trying to track the nearly 7,000 people been to train with isis, compared to the hn 00 have gone or tried to go from the u.s. >> i think it's because of their close proximity to some of thef concern. >> reporter: and the fbi has proven adept at stopping puterngsal attacks here. face one big

the use of encrypted apps,le phones and other ways that cannot be monitored. they say the u.s. has a head start, working hard since to prevent terror attacks. >> and they keep adapting too. so, this is not a static situation. it will keep moving. itates' security to keep improving. >> that is nbc's pete williams reporting. the attacks had a swift impact he campaign trail with candidates reacting very different ways. >> i say we have to have strong to be very vigilant and careful who we are allow into our country. we are allowing thousands and to come into our country and we don't even know who they are. they're coming from syria --

>> you say you're going to fix i'm not going to fix it. i'm not going to allow them to come in. >> where some of my opponents want to shut the world tell me how high does the wall have to be to keep the internet out? right? you know, that's not theive in any longer. we got to take them on, on the internet. >> we need a commander and chiefrything necessary to defeat the enemy and we need to immediately halt the president's ill advised planng in 10s of thousands of syrian-muslim >> i strongly disagree. it would be unconstitutional and wrong. we are fighting a barbariczation killing innocent people.

divisions where we say you're a muslm so we're going to keep an eye on you. that doesn't mean you are a d person that wants to destroy somebody in the west. >> it is good law enforcement to focus on where threats are inating from and anywhere there's a locusts of radical radicalization, we need law enforcement reforces directed there, national security forces directed there. >> i don't think we want to bee fears, playing to people 's concerns. so that we turn against one i think we have to have a slow, steady, smart, strong response and we don't need to be g. and in the democratic arizona primary, hillary clinton handedly defeating bernie

democratic caucuses. sanders won the utah and idaho and massive and overwhelming turnout in the state. donald trump is victorious in the winner take allpublican primary. while in utah, ted cruz is the winner. he actually takes all fortyp for grabs. political analysts and best selling author joins me from newgood morning, ellis. so, before we get to the numbers, did the attacks in belgium have any effect on voting? >> whoever you support, that just convinces you, you were right. if you want a firm clinton might be a person. a more muscular approach, donald trump.

>> well, trump is edging closer to the delegates last week there was a big question mark from you. >> i would say we still have an mark. it's certainly not sure while it was a winner take all in arizona, some of the other not be. and somebody has to got to keep beating donald trump, as ted cruz did. >> andat was a big win for him. >> and the fact he got over 50%. held kasich down means he gets all of the delegates. last night had a good story to tell except for john kasich but the other four can ort of victory. >> and hillary clinton had a dominating win in arizona. is sanders gaining momentum? because people

>> the passion is there but he's getting more momentum thantes. hillary clinton still got a little closer to the ultimate victory she needs. the energy is there but the numbers still tilt her direction, i'm afraid. >> ass for joining us today. >> good to see you, betty. let's get a check of your >> very rough day in the middle of the country. dangerous life-threatening weth weather with severe storms and a in denver. and you'll see wind gusts up to 55 miles per hour. and rain changing to snow snowy up 25. here's the map showing the winter storm. blizzard warnings from denver to northeast kansas. all the way acrossa, and right through is wisconsin.

it will move through nebraska and how about this? one of the biggest snowfalls we've seen in a while. up to a foot of snow possible michigan. green bay, aush cosh. and minneapolis are expecting around three and four inches ofow. and more of a wintry mix with minor accumulation and later today, this afternoon to tonight, this is where we get it severe weather possible. and isolated tornados. and little rock and st. louis late tonight. now a closer look at your day ahead.ou can see what a mess of a weather map this is. there's the warm air up in kansas city that'suse the severe storms. and we'll watch the threat of small storms in places like it and later right around memphis. just ahead, how countries

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. around the world from paris's eiffel tower to theandon burg gate in berlin. the empire state building went dark foo to honor the world stood in solidarity with the belgium people. in other news. we're following controversial toronto mayor, a video alleged to show him smoking crack cocaine. he later admitted and was hospitalize ize ized in february for cancer. he was 46 years old. just new details on the americans injured in tuesday's terror attacks in brussels.

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welcome back. there were no reports of any americans killed in any of the but there were a number of

group of mormon missionaries. sfwlrks >> reporter: at least six americans injured. >> he was in the mt. >> reporter: his son mason suffered second degree burns. he was at the airport along with mormon. all are recovering. ironically, mason was in paris when 130 people were killed and also survived the marathon terror attack. >> i think that experience of the chaos and civil unrest prepared mason for whatever perience. >> reporter: for parents, news came pain stakingly slow. these three students were alsort during the attack. janet cleary got the call at 3:00 a.m. that lauren and here all safe. >> she called, crying

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