The verge of collapse. Bergdahls return, the army ser get held captive by the taliban for five years now back on u. S. Soil, tonight an update on his transition to American Life and what he knows about whats been said about him. The serg on the southern boarder with mexico and dear dad, a new father on our team. From nbc news World Headquarters in new york, this is nbc nightly news with brian williams. Good evening, their name is isis, they are ruthless fighters, they carried out daytime crucifixions to make their point and swept from syria to the east and are rolling across iraq, and on their way, they have taken over major cities, some oil facilities, u. S. Weapons and vehicles. Make no mistake, what is happening in iraq now is a direct out growth of the u. S. Decision to invade the country over a decade ago. The question of what the u. S. Should do now, what it can do, the president talked about that today. Were not going to allow ourselves to be dragged back into a situation in which while were there were keeping a lid on things and after enormous sacrifices by us, as soon as were not there, suddenly people end up acting in ways that are not conducive to the long term effects of the country. What weve come to know as iraq could fall, it appears iraq is headed for partitioning, if indeed, that hasnt happened already. We want to begin coverage with Richard Engel back in iraq after living there for much of the decade. Richard, good evening. Reporter good evening, brian. Today the president talked about days to consider options but many iraqis arent sure they have days before this fight reaches baghdad. Militants from isis are 40 miles from baghdad and they are growing in number joining forces with other sunnis who opposed u. S. Backed shiite government and former military officials from saddam husseins regime looking for any chance to get back into power. Isis also now has the money to buy allies. It stole 450 million from the mosul central bank. The governor told nbc news today making it the Richest Terrorist Group in the world. And after robbing mosul, today isis imposed islamic sharia law there ordering women to wear vails or stay at home. Out lawing freedom of religion and barring all other armed groups from entering the city. And the men the United States trained to fight the isis assault, they are still surrenderi surrendering. Some told us they were ordered to by commanders. Without the armys protection, hundreds of thousands of civilians are leaving mosul. They are building tents as fast as they can. That there is a massive wave of people fleeing homes. The fear here is that this is just the beginning. This family, all 12 of them walked 20 miles to escape mosul. Now at a refugee camp, a mother of five calls iraqi troops cowards, says she would be better fighting than them. In the holy city where islam was surged in battle 14 centuries ago, volunteers signed up for a new war. Clergies called the faithfully to arms and promised those who die fighting isis, a place in paradise. The war is closing in on baghdad where it is tonight. The people are worried that when you speak to them, you sense there is fear about perhaps the unknown would come. Reporter tension in the capitol, the u. S. Freed from a dictator but fears it is once again in the cross hairs. And brian, as we talked about last night, there are still several thousand American Contractors and u. S. Diplomats in this country. Many of them at the embassy in baghdad. The state department wont say if extra security procedures have been put in place but i can tell you in some of the streets not very far from the embassy, the locals are barricading homes. Brian . Richard engel in the north of iraq for us tonight. Thanks. You heard the president say hes considering options, none of them are good. While the u. S. Is making it clear, the Iraqi Government needs to step up, chuck todd there with more, chuck, good evening. Reporter the president chose his words carefully. He also had a clear message for iraqs political leaders, any american help comes with conditions. In a hastily arranged press conference, the president outlined his options quickly eliminating one of them. We will not be sending u. S. Troops back into combat in iraq, but i have asked my National Security team to prepare a range of other options that could help support Iraq Security forces. Reporter but even as he hinted at some military action, targeted drone strikes the most likely, the president made it clear help wont come if the Prime Minister doesnt stop shutting out his sunni adversaries. The u. S. Is not going to involve itself in military action in the absence of a political plan by iraqis that gives us assurance they are prepared to work together. Reporter the president didnt stop there. He went on to blame the government for the performance of the security forces. The fact that they are not willing to stand and fight and defend their posts indicates that there is a problem with moral ultimately thats rooted in the political problems that plagued the country. Reporter and illustrating how this crisis created strange international problems, the president called iran to help but never mentioned the name. Iraqs neighbors have responsibilities to support this process. Nobody has an interest in seeing terrorists gain a foothold inside of iraq. Reporter irans president took to the airways yesterday promising iran would quote not tolerate the terrorism in neighboring iraq. The president who is keeping his weekend schedule, which includes down time in palm springs, said a decision whether to get involved military is not imminent and its that delay that spurred criticism by republicans on capitol hill. This request is made to take action with drone strikes. It is far past time for us to take a decisive move here. Reporter brian, two reasons the president is hesitant, first, pentagon Officials Say their intelligence is not good enough right now to launch strikes and they certainly dont trust information from the maliki government. They said he won by promising and delivering american withdrawal from iraq so the last thing he wants to do is go back in. Chuck, thanks. Were joined by david gregory, moderator of meet the press. Hes in our washington newsroom. David, how does the president sell any action at all to the component of the American People who feel to coin a phrase, its not our dance after the blood and treasure spilled there even though to coin another, we broke it . Right, that pottery barn rule you broke that you own it, you got to somehow fix it. This is a terrorism problem, brian. Thats what the president made clear today. This is not about the civil war in iraq or a neighboring syria. Those are certainly involved in a really the foundation of this. The reality is youve got terrorists who are much greater in numbers going to the number of foreign fighters perhaps even at 10,000 between syria and iraq. This could be a real threat to the United States. The American Public may not want to get involved again but the president has to outline the fact its a core belief of his that he cannot allow a failed state to emerge while saying politics is at the root of it. Hes not going to help unless the iraqis demonstrate they will help themselves. There will be a debate about that. David, i saw at least one News Organization fond of branding isis as the group too extreme for al qaeda. What about al qaeda in all of this . Well, this is really a fight for what al qaeda is going to be, post Osama Bin Laden in the middle east. Youre right, there is branded an organization thats too extreme for al qaeda. That tells you how awful it is. I spoke to one source who said this is worse than afghanistan before the 9 11 attack. So that might draw in iran that doesnt have a Good Relationship with al qaeda, either. David gregory, in our newsroom. The situation in iraq will be among the major top picks covered on meet the press. Among davids guest, mitt rom y romney. He will sit down for an exclusive interview. For this nations military men and women, those who served in iraq the pictures are confusing and tough to watch. It was a big top pick at the home of the unit known at the time as the tip of the spear. Fort steward, georgia where the third infantry is based, nbcs Stephanie Gosk is there for us tonight. Reporter in the spring of 2003 the u. S. Militarys Third Infantry Division from fort steward was among its first to fight its way to baghdad. There were four deployments in total, more than 400 soldiers killed. You dont know what the outcome is going to be. Reporter he served three tours as a combat engineer, the guys at the front of the front line. Do you ever think we should never have been in there in the first place . No, i dont ever have that opinion we never should have been there. We was called on to go, and we went there. We done our part. They got to do it on their own. Its their fight. Reporter each person we spoke with here has strong opinions about iraq, whether they fought or not because in a military town, everyone feels like they have been at war. Ellen marks husband fought in korea. She thinks the u. S. Military did pull out of iraq too fast. They should have left some back and brought them back in smaller quantities at a time. Reporter at the opening of a brandnew va clinic, there was a sense of relief that years of combat are finally ending and there is not a lot of appetite to go back in. Kerry harvey was a tank commander in the first gulf war. We cant keep putting soldiers in harms way over and over and over again. You know, somewhere it has to stop. Reporter no one we spoke with here wants boots back on the ground. Does the u. S. Have a role now . We have a supporting role, yes. But we dont have a role in fund. We should assist them from the back. Reporter for the war weary, the battle to secure iraq now feels like somebody elses fight. Stephanie gosk, nbc news, georgia. The uncertainty over the crisis is having, as you might have guessed, immediate Economic Impact at home. Iraq is the number two oil producer in opec. Gas line prices will go up five to ten cents a gallon in coming days following an increase in crude oil prices for a second day today. Their highest levels now in ten months. While the attention on much of the world is on iraq, russia is moving tanks and heavy weapons into ukraine the to aid russia and back separatists there is. The tanks and multiple rocket launchers were moved into ukraine yesterday and are now being spread out across multiple cities in the eastern portion of the country that has been the center of so many of those violent clashes of late. Tonight, u. S. Army Sergeant Bowe bergdahl back on american soil after more than a week in a u. S. Military hospital in germany and five years held captive by the taliban, nbcs katy tur is out Brooke Army Medical center tonight, katy, good evening. Reporter good evening, brian. He did the first two stages of his reintegration in germany and will continue onto the third here in san antonio. He arrived around 1 40 a. M. Last night on a military plane and was immediately taken to the medical center. Here, they will start the process of helping the now 28yearold make decisions for himself one. One of those is seeing his parents. They are not here now and so far he hasnt had contact with them. Doctors say it is up to him to decide when he is ready to reach out. Now when asked if Sergeant Bergdahl is aware of the controversy surrounding him, no, he is not. They wouldnt go into many details about his state of mind, whether hes happy, sad, excited or nervous but they did mention one of the things that he is starting to request is peanut butter. In the coming days, hell undergo more comprehensive testing, including conversations about just what happened during the five years in captivity. Brian, there is no word on exactly how long hell be here. Katy tur in san antonio for us tonight. Thanks. Still ahead for us this evening, crisis on the boarder this friday night, a sudden surge in children all alone making their way into the u. S. Illegally and later, that luxury home teetering on the edge of a cliff in texas, well show you what happened to it today. Two medium cappuccinos lets show em what a breakfast with whole grain fiber can do. 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So you can make owning a business even more rewarding. Ink from chase. So you can. Im 55 years old and i have diabetic nerve pain. The pain was terrible. My feet hurt so bad. It felt like hot pins and needles coming from the inside out of my skin. When i did go see the doctor, and he prescribed lyrica. It helped me. [ male announcer ] its known that diabetes damages nerves. Lyrica is fdaapproved to treat diabetic nerve pain. Lyrica is not for everyone. It may cause serious allergic reactions or suicidal thoughts or actions. Tell your doctor right away if you have these, new or worsening depression, or unusual changes in mood or behavior. Or, swelling, trouble breathing, rash, hives, blisters, changes in eyesight, including blurry vision, muscle pain with fever, tired feeling or skin sores from diabetes. Common side effects are dizziness, sleepiness, weight gain and swelling of hands, legs and feet. Dont drink alcohol while taking lyrica. Dont drive or use machinery until you know how lyrica affects you. Those who have had a drug or alcohol problem may be more likely to misuse lyrica. Having reduced pain is great and im grateful for it. [ male announcer ] ask your doctor about lyrica today. Its specific treatment for diabetic nerve pain. Back with more on this growing crisis involving children along our boarder with mexico. The number of unaccompanied children trying to cross into the u. S. Has increased 92 in the last year. The reason being blamed for this huge surge, more smugglers are selling a safe passage to escape increasing violence in central america. Tonight the situation is overwhelming local and federal officials. We get our reporting tonight from nbcs mark potter on the boarder in mission, texas. Reporter in a field near mission, texas, boarder patrol agents gets four young men and teens from central america. But the agent in the chopper spots Something Else and its a startling sight. A young man who had been hiding in the mud after entering the country illegally slowly crawls out of the field to join others. Hes part of the wave of more than 47,000 unaccompanied children, mostly Central Americans picked up at the u. S. Boarder. In the last 90 days, its gone through the roof. Reporter the surge puts a big strain on his department. The river is shallower, as you can see. Reporter along the rio grand, he shows us where the water is so low, the immigrants simply walk into the United States keeping his and other officers so busy, they have little time for other Boarder Police work. It takes a group of officers leaving other areas unattended where Something Else can come across. This is the neighborhood where i was raised. Reporter dutch piper says its so bad immigrants have been hiding in his yard. By the time i got in my vehicle and made the call, they were gone. Reporter undercover video shows seriously overcrowded conditions facing newly arrived immigrants at the u. S. Boarder patrol station in mcallen. Advocate groups allege young arrivals are being mistreated. Federal Officials Say they are scrambling to improve conditions and praise the over worked agents. Ive been watching them do absolutely heroic efforts. Not only rescuing children but taking care of them way beyond some of the skill sets. Reporter skills constantly tested as more desperate kids cross the u. S. Boarder every day. Mark potter, nbc news, mission, texas. Another break, were back in a moment with the end of an era tonight in the tv business. [ male announcer ] type 2 diabetes affects millions of us. And for many, its a struggle to keep your a1c down. So imagine what if there was a new class of medicine that works differently to lower blood sugar . Imagine. Loving your numbers. Introducing oncedaily invokana®. Its the first of a new kind of prescription medicine thats used along with diet and exercise to lower blood sugar in adults with type 2 diabetes. 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