Percentage of e cigarette users among High School Students jumped from 1. 5 to 20. 8 . Last year the Surgeon General released an advisory that called teen vaping an epidemic. I want to talk about this with medical correspondent dr. John torrez. Good to see you. This was thought of as really the advances in cutting smoking down was built around not having teens pick up smoking. That was thought to be the big game. Taxes on cigarettes that made it expensive, rules about not selling single cigarettes. I had no idea vaping had become as serious a matter as it has for young people. It is essentially an epidemic, thats about what every expert calls it. What initially happened, it started off as an adult product, but children, teenagers picked up on it, adolescents, and if you talk to most, they say in school it is essentially everywhere. Theyre able to sneak it into school, do it during classes. What we are finding out is for some adults, seems like it might help them stop smoking cigarettes which we know are very unhealthy, danger to your health. A way to transportation out of cigarettes. Way to transition out. We are finding in teenagers and adolescents that it seems to be almost a gaeteway, and it makes them more likely to smoke cigarettes. Youre seeing whats going on are the way the brains work adults versus when were not adults, teenagers or adolescents. It is clearly established with smoking, if you prevent them developing in middle school and high school, chances of keeping them off smoking through life are greater. Exactly. Thats one of the reasons so many people are concerned. When they start e cigarettes, most of these contain nicotine, even ones that say they dont, some have shown to have nicotine when they look at them. That changes the teenage brain which is developing quickly. Changes it permanently and changes it to addiction type brain where they start to get addicted to nicotine which then jumps to the addiction to cigarettes themselves which we know are unhealthy. I tell people all the time, just because you hear people are saying it might be healthier than cigarettes doesnt mean it is healthy themselves. Obviously lung cancer was an issue with smoke, tar and pictures and imagery of lungs which stopped many from smoking. Whats the danger with e cigarettes. You mention nicotine. Whats the Health Danger . Two different areas, the brain and lungs. The brain itself, i mentioned the adolescents teenage brain is developing. The nerve endings are starting to form and they form differently if theres nicotine on board. That nicotine itself can cause addiction issues but they can cause behavioral issues and learning issues as well. Listen to mitch mcconnell. Lead this charge. The tobacco buy out in 2004. But actually my long experience with this subject and commitment to farm families are part of what convinced me that now is the right time to do this. So i would like to say a few words about why. Mr. President , tobacco has been deeply intertwined in our nations history from the very beginning. Native americans grew it and used it before european explorers ever arrived. John roth, the famous settler that married pocahontas kick started virginias export economy using foreign tobacco seeds in 1612. By the eve of the revolution, tobacco was a major export and huge part of our colonies prosperity. Many tobacco farmers were energetic early backers of independence. George washington grew tobacco at mt. Vernon first at his primary crop, and Benjamin Franklin anewspap franklins newspaper, some of the earliest ads ran alongside essays urging them to stand up for freedom. Several Million Pounds of tobacco were used as collateral to secure loans needed from grants. Years later, lewis and clark used it as a peace offering to tribes they met while headed west. Were going to monitor this. It is an interesting history lesson, starting in 1612, talking about tobin america. Mitch mcconnell in addition to house leader is a senator from kentucky, a state in which tobacco played an important role. I am with john torrez, talking about this. The point i think he is getting to, whatever this is, this is more important than the lobby that continues to work on behalf of e cigarettes, that theres an opportunity for the federal government to work in a bipartisan manner to come up with legislation that makes it harder for young people to get started on e cigarettes and regular tobacco. To that point, theres something of a resurgence in young kids in middle and high School Smoking regular cigarettes. I think you are seeing a connection between the two. E cigarettes often times contain nicotine. It can form addictive behavior and theyre addicted to the nicotine or switch to cigarettes. In studies, in some adults, helps them get off cigarettes. But teenagers and adolescents pushes them toward e cigarettes. There are other chemicals involved, too. It can effect the brain. It causes addiction issues, can cause learning issues and other drug addiction issues and then the lungs themselves. Unlike smoking, it is harder to detect if somebody is vaping. Good to see you as always. Nbc news medical correspondent. We will follow that development and bring you up to speed. Try respect. It works. Thats the message from irans foreign minister to President Trump. A series of counter tweets, he warned economic terrorism and genocidal taunts wont end iran. Over the weekend, Security Officials said iraqi officials said a rocket landed near the u. S. Embassy in baghdad. No one claimed responsibility for that rocket, but shortly after the attack the state department cautioned that it would respond accordingly if any of irans proxy militia forces who are known to operate in iraq were involved. Hours later, trump tweeted if iran wants to fight, that will be the official end of iran. Never threaten the United States again. Then trump sat down for an interview with fox news with a slightly softer tone. Im not somebody that wants to go into war because war hurts economies, kills people, most importantly by far, most importantly. I dont want to fight. You do have situations like iran. You cant let them have nuclear weapons, you just cant let that happen. This afternoon the president tweeted iran will call us if and when theyre ever ready. Meantime, their economy continues to collapse, very sad for the iranian people. Tensions are only getting worse in the region. New reports from semi official iranian News Agencies say iran has now quadrupled production of low enriched uranium a week after they announced they would stop commitments unlds the nuclear deal. John brennan will brief the house and senate on the situation in iran. As Congress Demands more information on the threat there. Trumps top lieutenants are building a case why trump may not need Congress Approval under the use of force resolution from 2001. The president s mixed messaging and hawkish views of the administration have many critics at home questioning what the administration is trying to accomplish with respect to iran. For the latest from the iranian side, go to the Tehran Bureau chief, and from the latest at the white house, chief White House Correspondent hallie jackson. Let me start with you. Thats the question to ask. What is the administration trying to do . There was an iran deal, the president campaigned against it. His National Security adviser hasnt been in favor of that deal. Now President Trump talks of threatening to them but talking to them, getting negotiation, Getting Nuclear Weapons out of their hands. Whats the end goal . Reporter this is classic donald trump, notably on the Foreign Policy front. The negotiating tactic with kim jongun, fire and fury interspersed with being in love. It is similar with the iranian regime. The president in that fox news interview taped it last week, prior to the tweets talking about warning of the end of iran and that of course sparking the Foreign Ministers fiery response. It is mixed messaging and back and forth. This is a president as his advisers will say likes to keep adversaries off balance. This appears to be if you want to call it strategy, a strategy to do just that. Theres also the personnel piece. You mention john bolton and his hawkish stance, something our colleagues are writing about, laying ground work essentially to perhaps use military force against iran under the 2001 aumf fighting al qaeda essentially. Heres the deal. Donald trump knew who john bolton was when he brought him on board. He said privately and publicly he had to reign in ambassador bolton. Thats also part of the tension and flash points youre seeing play out in public on twitter. And we had a letter sent by iranian United Nations ambassador to the secretary general. Her point of keeping the iranians off balance, donald trump is causing the Iranian Ambassador to the United States to respond. The response is that iran will never choose war but if war is imposed, iran will vigorously exercise the inherent right to self defense. Whats the feeling in tehran, is there a war footing developing because this is something that i think most people agree would not be a good situation for either country. Well, i dont think the iranians want a war and i dont think theyre the ones that will start a war, it would have little up side for the iranians. They could do untold amounts of damage to u. S. Assets, to Saudi Oil Fields in the region, but ultimately they will also get devastated, so thats not something they want to instigate, but they are saying they can defend themselves and that theyre not frightened of a war. We have seen a lot of messages coming out while all of the heightened war rhetoric is coming out of the United States, the iranians have said their missiles, short range missiles in the region can hit that u. S. Flotilla currently in the persian gulf. They made veiled threats of proxies in syria and iraq could wreak havoc in the region, that they could hit u. S. Assets, 5,000 or so u. S. Troops in iraq amongst all those proxies in iraq that are loyal to iran, many of those proxies are saying we dont want u. S. Troops here. The message from iran is we can arouse those people easily and make life very difficult for everybody here. But theres also a thought here in iran that trump is a bully but he doesnt want the fight. However, the people he surrounded himself with that are hawkish on iran do want to fight, and President Trump may be the best option of getting one. Ali arouzi, hallie jackson, thank you both. Coming up, were talking about the impact of President Trumps newly unveiled merit based immigration plan and the effect it will have on the economy with someone that helped draft it. Chairman of the White House Council of advisers joins me next. The 2020 candidates plan to close the growing racial wealth gap in the United States. Youre watching msnbc ms. clapping sound of can hitting bag and bowl clapping always there in crunch time. What you need and so much more. At wayfair, youll find just you get to spend less time searching and more time loving every room, even the ones you never thought could look good. You get great deals on the things you need and actually want. You get fast and Free Shipping on thousands of items and finds for every home, and every style, at every price. Thats what you get when youve got wayfair. So shop now heresshow me making it. Like. Oh i got one. The best of amy poehler. Amy, maybe we could use the voice remote to search for something that youre not in. Show me parks and rec. From netflix to prime video to live tv, xfinity lets you find your favorites with the Emmy Awardwinning x1 voice remote. Show me the best of amy poehler, again. This time around. Now thats simple, easy, awesome. Experience the entertainment you love on x1. Access netflix, prime video, youtube and more, all with the sound of your voice. Click, call or visit a store today. At least 1712 additional Migrant Children may have been separated from parents before the zero tolerance policy put in place a year ago in may. The Trump Administration controversial policy resulted in 2800 children separated from families, the number proving to be higher than previously reported due in large part to inability to track it before the policy went in effect. In april, a District Court judge ordered them united with families and set a six month deadline. So far they reviewed the files of 4108 out of 50,000, thousands more Migrant Children could have been effected. New details of the extent of the Family Separation Program comes as the president pushes a plan aimed at reshaping the Legal Immigration system. The plan calls for creation of a merit based immigration system that would prioritize the entrance of highly skilled immigrants over the current family based system but doesnt address the 11 Million People currently in the country illegally, nor hundreds of thousands of dreamers brought to the United States as children. Council of economic advisers kevin h kevin hassik one of those that drafted the plan. Good to see you. Thank you for having me. Tell me in Broad Strokes what you believe are the goals of the plan you put forward. What President Trump wanted us to do is try to focus on Legal Immigration, craft a plan for the u. S. That would make us the Gold Standard of immigration policy, and big geeky team of people in the white house spent months and months studying best practices around the world, came up with a point based system that would add to Economic Growth and add a heck of a lot to growth for people at the low end too, we would be bringing in higher wage people that increase productivity of workers. Actually i watched your hit with Jennifer Hunt from rutgers last week. The other thing we want to do is start a conversation about what a good Legal Immigration system ought to look like. You had an excellent session she raised some good points maybe we can address, that kind of rational debate is something we need. We started at a place we all could agree. We have been concentrated on one segment of immigration and not another, skilled immigration. Lets play Something Interesting that Jennifer Hunt said to me the other day. The way to think about this best, when immigrants come in and do Different Things from natives, allow everyone to specialize more in what theyre doing best, that increases the efficiency of the economy, more output for everyone, increases output, gdp per capita for natives and benefits of course the immigrants as well. It is that contribution of the unskilled immigrants that people overlook when they push the socalled merit based or whats called in other countries point system. One of the problems we have in the country, we associate unskilled labor and immigrant labor, theyre not necessarily the same thing. Right. There are a lot of low skilled, unskilled labor required in the United States, some of whom get temporary agricultural h 2 a visas. How does the merit system deal with that. Theres merit having people that dont score high on a merit system because we need them. Right. Thats a great point. What this plan does, it is all about permanent residence, green cards, citizenship. We dont go into the temporary work visas and so on in the plan. Were talking about what we want to do for people that make permanent residence, how can we help the economy the most and help low income people the most. Theres literature that shows in when you put in an engineer and put him in a zip code, they create more than a job for themselves. The other thing is increase the diversity of the griimmigrant p. If youre a kid in kenya, you have to hire a lawyer and you dont have a shot unless you have a Family Member in the u. S. We want anyone on earth to go online, type in stuff, find out if they can get in or what skills they need to develop, take Vocational Training to get to the u. S. It makes america the land of opportunity again. And were thrilled with the plan. And also with reception of the plan. Jennifer had good points but gave us a relatively positive reception. Talk about those visas. Theres a system, many engineers in Silicon Valley work on that h1b. They received over 201,000 petitions during the filing period for 65,000 visas allowed under law. Another 20,000 to people with advanced degrees. Theres a massive backlog of a system which only issues visas to skilled people. Why isnt that an obvious fix . Well, what we want to do is make it so that in the green card side what happens is that you get points if you have skills that americas economy needs, also we address one of the points, we give more points if you basically get a high wage offer. One of the things that goes into our points based system is the wage people are paid. If it turns out that now the plumbers get paid huge wages, they would get a lot of points coming in. By determining the points in part based on market factors, we make sure things that are most scarc