Soldiers outside the city of ramadi. U. S. Troops have been training the iraqi army for 13 years. It has cost american taxpayers nearly 30 billion, and there is no end in sight. Charlie dagata saw some of that firsthand. Reporter on the outskirts of Baghdad Iraqi army recruits took aim at an imaginary enemy. But for u. S. Trainer Sergeant First ClassJosh Mcspadden its all too real. I fought in iraq the first time. Reporter hes been here before. During the worst of the fighting in 2004. And he remembers in vivid detail the day he thought he was going to die. It was the only day in my life that i ever thought that i wasnt going to make it home alive. You know, but it was so intense. Reporter but whats it like to have fought so fiercely and now youre back again . Its frustrating. You know, you want to see your brothers in arms, you know, the iraqi people, you want to see them have the same motivation. You want to see them fight the same way that you do. Just to come back here and face the same problems, you know, and its just whens enough going to be enough in. Reporter he doesnt have a lot to work with. A rusty russian tank and a handful of armored personnel carriers. Theres not enough ammunition to practice with the big guns. Well, theyre not much, but theyll be vital in any ground offensive iraqi forces launch against isis. And its no exaggeration to say that some of the recruits are far younger than the tanks theyll be firing. Yesterdays strike on the iraqi capital was the worst bloodshed the city has seen this year. Mcspadden says that only strengthens the resolve of his new recruits. Theyre very motivated. You know, especially with the attacks that happened in baghdad. It angers them. They want to take their cities back over. Reporter that training may have looked rather basic, scott, but those tanks and armored personnel carriers play a vital role in any ground offensive. And that equipment wasnt just for training. Its the same kind used by iraqi forces against isis on the battlefield. Charlie dagata in baghdad tonight. Charlie, thanks. Two state troopers from New Hampshire and massachusetts were placed on leave today after apparently beating a man at the end of a highspeed chase. The suspect appears to surrender, getting out of the vehicle on his knees, and then the Police Officers pummel him. The man wanted on Assault Charges had a swollen eye in court today. The 9millimeter pistol that George Zimmerman used to kill Trayvon Martin is up for sale. The former neighborhood watchman claimed that he shot the unarmed teenager in selfdefense. He was found not guilty of murder. Mark strassmann tells us what zimmerman wants to do with the money. Reporter at gun broker. Com zimmerman opened the bidding at 5,000. He described the weapon as an american firearm icon and a piece of american history. He talked about the sale by phone with television station wofl. What ive decided to do is not cower. Im a free american and i can do what id like with my possessions. Reporter but as the bidding opened, gun broker, a usergenerated site, removed the posting saying we want no part in the listing on our website. Hours later, zimmerman relaunched the auction on another site, united gun group. Trayvon martins parents still view zimmermans gun as the murder weapon. Lawyer ben crump represents them. How could you possibly try to make money off of the killing of their child . Put your hands up. Get away from the car reporter controversy has dogged zimmerman since his acquittal in july of 2013. He has had eight runins with police. Among them in september of 2013 police questioned them for pointing a gun at his wife and fatherinlaw. Two months later he was arrested for aggravated assault against his then girlfriend. The charges were dropped. In a 2015 road rage incident zimmermans truck was hit by gunfire and the other man was charged with attempted Second Degree murder. Last year zimmerman was arrested for throwing a wine bottle at his girlfriend. And now the gun auction, which critics on social media blasted as obscene and disgusting. Theyre not going to be bidding on it. So i couldnt care less about them. Reporter zimmerman has said hell spend the money he makes from the gun auction on various causes that matter to him. Scott, he specifically named preventing violence against police and the black lives matter movement. Mark strassmann, thanks very much. Store sales are slumping. Is it time to reinvent the mall . And the pentagon recruits a few good nerds. The cbs overnight news will be right back. How can this have been washed 12 weeks ago and still smell like springtime . Unstopables inwash scent boosters. The more you pour, the more scent youll savor. Toss it in before your clothes for luxurious scent up to 12 weeks. Unstopables by downy. The ultimate in long lasting scent. I use resolve pet foam. Spray it on evenly. Rub it in. And then i vacuum. 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This weeks earnings reports from retailers confirm what empty Parking Spaces have been suggesting. Sales are in a slump. Kohls said profits dropped 87 last quarter. Macys says its First Quarter income was down 40 . Carter evans with more on this. Reporter this is whats left of the sears in san mateo, california, one of nearly 300 stores its Parent Company has closed over the last two years. Sears chairman says its a victim of disruptive changes from online competition, and its not the only one. Sports authority plans to close 140 stores this year. Macys will shutter 36 locations. And jcpenney closed 47 over the last year. Ira kalb is a marketing professor at the university of southern california. He says many big box retailers no longer give shoppers a reason to leave their commuters. Retailers have lost their added value. Reporter since more online sales means fewer purchases at local malls, many Retail Developers are now trying to upgrade to more Luxurious Shopping Centers that can sell twice as much per square foot and offer much more than shopping. In order to compete with online convenience and the onestop shopping, youve got to create a store experience. And the ones that have are the ones that are doing well. Reporter like the grove in los angeles, which is experiencing doubledigit growth. Its a Shopping Center that looks more like a village main street, complete with a green space, restaurants, and valet parking, because the goal is no longer just shopping. We are also in the entertainment business. Reporter marketing director judy johnson says shoppers spend twice as much time and more money at the grove than other malls. Whether they shop with us isnt really relevant because at some point everyone has shopping or dining needs and they will come back because we have built a great relationship. Reporter when they finish tearing down this sears store in san mateo, they plan to replace it with a landscaped plaza and luxury bowling alley. Now, some retail analysts say all these store closings were seeing are actually a good thing and may be long overdue because, scott, many retailers simply have too many brick and mortar locations and they need to lean down to compete for those online shoppers. Sign of the times. Carter evans, thanks very much. The cbs overnight news will be right back. ,,, the best defense is a good offense. So the pentagon challenged hackers to assault its Cyber Security system. The experiment ended today. Heres david martin with the revenge of the nerds. Reporter walking the halls of the pentagon in his hoodie, chris lynch has been mistaken for a repairman, as in how long will it take you to fix my phone . This is the weirdest moment of my life. I never thought id show up in government. I never thought that id be working at the pentagon. Reporter a Software Entrepreneur from seattle, lynch was brought in by defense secretary carter to head a new office called the defense digital service. The title on the door says Rebel Alliance. I like to say that the Rebel Alliance is anybody who wants to be part of working around and changing the bureaucracy. And i believe that is our mission. If we dont i dont know who else will. Reporter just as in star wars, this Rebel Alliance, actually a staff of 12, is out to do battle with a mighty empire the old and slow pentagon bureaucracy. Were kind of a s. W. A. T. Team for nerds. Bureaucracy busters. Yeah, we have actually a type of person, one of our skill sets that we hire is actually a bureaucracy hacker. Reporter lynchs first project was called hack the pentagon. Pay a bountdy to anyone who can find a way to hack into five of the defense departments public websites. So hack the pentagon doesnt even sound legal. There were a lot of people who didnt like that name. Reporter most hackers i think are seen as malicious. Not every hacker is bad. Thats the big change here, is were now allowing people who actually want to that are not malicious to do it. Reporter in six weeks 1,400 hackers uncovered 90 vulnerabilities in the software, flaws which could be exploitsed to tamper with the sites. We had our first vulnerability that came in 13 minutes from the launch of the program. Well just kind of match things out. Reporter lynch has covered an entire wall with plans for overhauling pentagon software that go far beyond public websites. Which is why Army Lieutenant colonel joe roman came looking for a Software Solution to the paperwork of recruiting. This will be fun since we dont speak your language, you dont speak ours. This will be ill try to speak slowly and loudly so that you understand. Reporter lynch finds out the army is creating digital files the oldfashioned way. So theyre printing all this stuff and theyre scanning it . Is that what theyre doing . Reporter another potential project for lynchs great white wall. Which ends with this admonition governments hate two things, change and the way things are. David martin, cbs news, the pentagon. Thats the overnight news for this friday. For some of you the news continues. Fo others check back with us a little bit later for the morning news and cbs this morning. From the Broadcast Center in new york city im scott pelley. Announcer this is the cbs overnight news. Welcome to the overnight news. Im don dahler. Donald trump made the rounds in washington meeting with Republican Leaders whove been reluctant to support his president ial bid. Chief among them, House Speaker paul ryan. Ryan shocked the political establishment last week when he said he was not ready to endorse trump. Ryan didnt change his tune after their 45minute meeting, but he did call it very encouraging. I was very encouraged with what i heard from donald trump today. I do believe that we are now planting the seeds to get ourselves unified, to bridge the gaps and differences, and so from here were going to go deeper into the policy areas to see where that Common Ground is and how we can make sure that we are operating off the same core principles. And so yes, this is our first meeting. I was very encouraged with this meeting but this is a process. It takes a little time. Donald trump also met with the Republican National committee, whose help hell need to raise the estimated 1 billion itll take to fund his president ial campaign. Julianna goldman reports. Reporter for donald trump to raise 1 billion it means he has to bring in about 45 million a week. Its a pretty tall order for someone whos won millions of votes from deriding big money in politics and now hes basically starting from scratch. Im selffunding my campaign. Im not taking all of this blood money. Im not having lobbyists, and im not having citibank and im not having i fund it myself. Reporter it was a defining sales pitch for donald trump. And you know what im getting for this movement . I get nothing. Im selffunding my campaign. Okay . Reporter a line he repeated in ads im selffunding my campaign. Reporter in interviews. Im putting up my own money. Reporter and on the campaign trail. And im selffunding. I selffund. So im selffunding. Reporter and it worked. 3 58 of voters in a recent cbs news poll said trump was not influenced by special interests. But with the nomination in reach hes reversing course. Im raising money but im raising money really for the party. Reporter not only will he be asking for money, but trump already has super pacs. I think youre starting at a billion dollars right now. Reporter frank donnatelli is a longtime republican fundraiser. He says trump is behind. Youre going to need people with good contacts lists that can write checks themselves but also bring their friends and relatives to the table also. It takes a full court press on behalf of the candidate and the campaign. Reporter the billionaire businessman is scrambling to get that team. He hired top fundraisers who worked for marco rubio and mitt romney. He also has the backing of a reported half dozen gop benefactors like billionaire t. Boone pickens and sheldon ad adelson. But others like the Koch Brothers are Still Standing on the sidelines. Its just bowing to reality that thats what you have to do to be competitive in november. Reporter competitive against hillary clinton, who has already raised almost 168 million from individual contributions compared to just over 12 million for trump. But even if hes trying to open the fundraising floodgates, he still said this just last week. Im selffunding my campaign. Take a look at hillary, the money. Take a look at where shes getting that money. Reporter later this month trump will be kicking off a string of 50 fundraisers beginning with an event in california. In order to get to that billiondollar mark hes probably going to need to start making calls to those special interests he said hed never bow down to. Three years after a texas fertilizer plant went up in a huge fireball killing 15 people and injuring hundreds, investigators say it was no accident. Manuel bojorquez reports. Reporter when the massive explosion ripped through this texas fertilizer plant in 2013 you okay . I cant hear. I cant hear. Reporter it leveled part of the small town of west. There has been an explosion on the fire scene. There are firefighters down at this time. Reporter the blast destroyed hundreds of buildings, including schools, a nursing home, and an apartment complex. 15 people were killed. 12 of them First Responders who had rushed to the scene. We have never stopped investigating this fire. Reporter wednesday, after more than three years and a more than 2 million investigation, federal authorities revealed the fire that sparked the explosion was deliberately set in a seed room at the facility. The fire has been ruled as incendiary. This means this fire was a criminal act. Reporter federal authorities are offering a 50,000 reward for any information leading to an arrest. They say they believe their investigation is headed in the right direction but they need the publics help to get them across the finish line. About 5 million syrians have been driven from their homes by the civil war, including about a million children. Many have ended up in turkey, where a cbs news investigation found refugee children working long hours in sweat shops. Holly williams has that. Reporter in a textile factor in istanbul workers toil over sewing machines. But look closely. Because these workers are children. Filming with a hidden camera, we found scores of factories using child labor in turkey. Most, perhaps all of the children from syria. Some told us they were as young as 11. Refugees from a war now easily exploited. A turkish worker on the minimum wage earns around 450 a month. A syrian child working 12 hours a day earns as little as 160. At a school for syrian children in istanbul these boys, age 10 to 12, are just beginning to learn to read and write because until recently most of them were fulltime workers. How many of you guys have worked . Wow. Reporter the school founder, shaf sha shafiq. Suleiman told us he offers free tuition tone courage parents to send their children back to class. But sometimes thats not enough. Parents arent earning enough money to feed their families. No. So they have to theyre being forced to send their kids to work. Out of desperation. Yes. Yes. Theyve got no choice. They have to send their children. Reporter layla aqcha is a psychologist who treats syrian child refugees and their families and told us many factories prefer to hire children over their parents. You can overwork the children and theyre not going to be oppositional. Theyre not going to ask for their rights. They dont know their rights. So theyre just going to work like slaves and its easier to keep them as slaves than doing it to an adult. Reporter turkey has taken in around 3 million syrian refugees, spending billions of dollars to shelter and feed them. But while theyre safe here, theres very little stable work and not much hope of building a future. Thats why so many syrians have risked their lives in rickety boats to reach europe. But now the European Union has promised turkey nearly 7 billion in return for its help stopping the refugees. And the crackdown has worked. For syrians the door to europe has slammed shut. But the factories that prey on them appear to be operating with impunity. An