Woodruff all that and more on tonights pbs newshour. Major funding for the pbs newshour has been provided by moving our economy for 160 years. Bnsf, the engine that connects us. Supported by the john d. And catherine t. Macarthur foundation. Committed to building a more just, verdant and peaceful world. More information at macfound. Org and with the ongoing support of these institutions this program was made possible by the corporation for public broadcasting. And by contributions to your pbs station from viewers like you. Thank you. Woodruff enormous explosions tore through a container port tonight in northeastern china. Officials reported at least 13 dead and up to 400 injured. It happened in tianjin, at a warehouse for hazardous materials, shortly before midnight, local time. Police said the first blast lit off a much larger one, with the force of 21 tons of t. N. T. It sent a gigantic fireball into the air, and the shock wave sent people flooding into hospitals. Ifill former president jimmy carter announced this afternoon he has cancer. In a statement, he said recent surgery showed its spread from his liver to other parts of his body. He said hell begin treatment in atlanta. In a recent interview with the newshour, the 39th president noted that both his parents and all three siblings died of cancer. They all smoked cigarettes. And i never have smoked a cigarette. So, i think that may be a triggering device to some genetic factor. I dont know what the background is. But the Health Service of america kind of adopted me as a target. We were the only family in the world for a number of years that was known to have pancreatic cancer deaths in four members. Ifill former president carter is 90 years old. Woodruff protesters in arlington, texas say theyll keep demanding criminal charges in the Police Killing of christian taylor. The unarmed, College Football player was killed friday night at an auto dealership. Last night, the Arlington Police chief fired officer brad miller, citing serious concerns about his actions. These concerns, however, are best addressed through the criminal investigation process. However, based on the preponderance of the evidence available to me and the facts revealed by the investigative team, i have decided to terminate officer millers employment with the Arlington Police department for exercising poor judgment. Woodruff the chief said its clear from security video that taylor vandalized vehicles at the auto lot and drove one into the building. But, he said, that does not excuse the officers mistakes. Ifill a new blaze added to californias wildfire woes today. This one is burning across 26 square miles, north of san francisco. Gusty winds have spread the flames, and more than 1,100 firefighters are on the fire lines. But, theyre not expected to have it contained until monday. At least 150 people had have to leave their homes, including some who just recently had to run from another big fire. Woodruff its not fire, but floods in myanmar the worst in decades. Officials say more than a Million People are critically affected. Nearly 4,000 were evacuated today from the stricken capital of chin state, in the Southeast Asian nation. Mudslides triggered by torrential rains have destroyed hundreds of homes in lowlying areas since late june. More than 100 people have died. Ifill beleaguered officials in greece bolstered security today on a Holiday Island where tensions with migrants are growing. Theyre fleeing war in syria and elsewhere, but finding little relief. Harry smith of independent Television News has this report. Reporter by night and day, theyre coming ashore now in their thousands. Its just a short crossing from turkey to the island of kos. But the celebrations are short lived. The authorities here are overwhelmed. 2,000 of the new arrivals have been locked in a football stadium without food, water, shade or sanitation. They have to be registered before they can move on. Those with the strength to do so push to try to reach the front of the queue. I think its very bad, very bad. Reporter a medical team from Medecins Sans Frontieres said theyve been struggling to treat the numbers overcome by the heat many of them children. They said it was not prepared. No access for water. We dont have water for other people. Reporter these pictures said to have been taken today in the damascus suburb of ghouta provide a sharp reminder of why so many are so desperate to cross the sea to europe. The route to greece has become the most popular crossing since the fighting in libya made the trip to italy too dangerous. But they are now arriving in a country already struggling with a crisis of its own. Extra riot police have been sent to kos and other islands in the aeagean to help control the influx. There have also been calls for more ferries to take the migrants to the mainland. But that only moves the problem somewhere else. Ifill the greek government said its also sending a cruise liner to kos, to be converted into a Processing Center for the migrants. Woodruff and wall street was a roller coaster today as china allowed its currency to fall for a second day. The Dow Jones Industrial average dropped 277 points before heading back up. In the end, the dow was just a fraction of a point lower, closing near 17,400. The nasdaq rose seven points and the s p 500 added two. Still to come on the newshour politics, policy and polls on the campaign trail, Hillary Clinton agrees to hand over her private email server, how chinas currency could affect American Business and jobs. Plus, much more. Ifill the last few days have brought yet another twist in the already dramatic race for president with a New Hampshire poll showing democratic senator Bernie Sanders ahead of Hillary Clinton for the first time. Political director Lisa Desjardins reports on the changing Campaign Landscape in both political parties. Reporter the blur of could bees and would bees is now moving to the beginning of a defining 2016 horse race including a twist on the democratic race. When Bernie Sanders entered, it was unlikely he could shake the assumption Hillary Clinton would be the democratic nominee but momentum is big league his way in the northeast. Sanders has a 17 point lead over clinton in a New Hampshire poll yesterday, trailing by wide plargs in national polls. But sanders biggest numbers are his cloud numbers. He has attracted eye popping audiences like this one, 27,000 people at a rally in los angeles over the weekend. Thats more than either democrats or republicans have seen. As Hillary Clinton pushes policy ideas including College Tuition cuts, sanders message of income inequality is resonating. Here earning endorsement of a National Nurses union. The march on washington, was called jobs and justice. Reporter mean while on the g. O. P. Side, its still anyones race. In iowa, donald trump leads, followed by these three republicans. But take a look at the latest New Hampshire poll, and those faces behind trump change completely. As for trump were going to have a little fun tonight. Reporter the c. E. O. Is looking to expand his need, campaigning in more places like this event in michigan last night. Not that trump is without problems. He lost a top advisor this weekend following sharp comments about fox news anchor megyn kelly. As trump aims to keep first place were facing an i. S. I. S. And its ideology. What it is is to borrow a phrase, the focus of evil in the modern world. Reporter jeb bush, who was thought to be potential frontrunner before he entered the race is hoping to gain the top spot using foreign policy. He outlined it in this address at the Reagan Library last night during president obama and Hillary Clintons for the rise to have the Islamic State in iraq. Where was secretary of state clinton in all this . Like the president , she opposed the surge, then joined in claiming credit for its success, then stood by as the hardwon victory by american and allied forces was thrown away. Reporter as for clinton, this week, she indicated shes ready for challenges from both sides. Im looking forward to debating, first my friends and colleagues in the democratic side, and then, you know, finally having a chance to debate the republicans about whatever their nominee has to say. Reporter of course, all candidates will have much more to say in the days and weeks ahead. For the pbs newshour, im Lisa Desjardins in washington. Ifill Hillary Clintons surprise move to turn her personal email server to the Justice Department followed new details that some of them contained classified information. Secretary clinton has been responding to questions about her email correspondence for months. I did not email any classified material to anyone on my email. There is no classified material. So im certainly well aware of the classification requirements and did not send classified material. I am confident that i never sent nor received any information that was classified at the time it was sent and received. This is really a question for the state department. Theyre the ones that are bearing the responsibility to, you know, sort through these thousands and thousands of emails and determine at what pace they can be released, and, you know, i really hope that it would be as quickly as possible. Ifill and we are joined now by anita kumar, White House Correspondent for mcclatchy newspapers. Anita, we just saw the way her answers have changed ever so slightly over the summer. What is the difference between what she said the answer to these questions when they first came up and now . I think there is a lot of similarities. She said she stuck to the fact that she did not send or receive classified information. Now, her responses changed because she said she would not give up the server, she would not give up the thumb drives with the emails, and shes clearly changed her mind about that. But what she has said still is she didnt send or receive classified information. Ifill the other thing she said in a statement her campaign put out today is she was only one four secretaries of state asked to turn over these emails who did. Is that so . Yeah, the investigation is actually into the five. They looked at the last five secretaries of state and their aides. Theyre allowed to look at the aides. Their jurisdiction is to look at the aides so they are looking at that, but she said ive turned over mr. Information than anyone else. She also was the last sitting secretary of state and probably more email than anyone. Ifill and probably the only one actually running for president. So lets talk about what we think or what she has said is on this thumb drive in this classified server or not a classified server private server she turned over today. What does she say is in it . She had 60,000 emails on the server, it was everything she emailed, personal and work email while she was secretary of state for four years. She turned 30,000 over to the state department, and the others she said were personal and wiped it clean. So its really unclear whats on the server now. Ive talked to experts who say you can get rid of everything on a server, and then some who say unless you know what youre doing you cant get rid of everything. Ifill so wiped clean, not just for storage reasons. If you delete for storage, its still there. You have to use the appropriate tools. These are Technology Experts that say it depends on the tools she used. If someone is in the field and knows what theyre doing, they might be wiped clean. Ifill clintons aides are being looked into as well . Theyre looking into some of her top aides who used personal email for work as well. At least one ade also had an account on clintons private server. Ifill one of the things that secretary clinton said is that she didnt use send anything to her home server that was classified at the time. Right. Ifill what is the distinction between whats classified, sensitive and what may have been purely personal . Can you reclassify things . You can later and thats whats happening. There were no markings that said something was classified. Thats what shes relying on. Her language is very clear. There were no markings, she says. But what is happening now is since the state department is looking through them, theyre releasing them to the public, part of a lawsuit that says they have to release state department emails, theyre looking through and redacting things that need to be redacted. Some of it is personal. Theyre not listing someones email address. There are other things, doesnt mean its classified or top secret. But the Inspector General for the Intelligence Community has started to look for at the mails and thats where the five emails come in that he says are classified. Not that they were at the time but they should be classified. Ifill it is easy to confuses personal when the person is running for president a legal dilemma with a political dilemma. How is this being treated by all the parties, as a legal question or is it a mix of all of it . Isnt everything political . Ifill yeah, i suppose. There are legal questions, no doubt about it, but the f. B. I. Which is looking into the matter, the Inspector Generals of two agencies looking into it have been very clear that what theyre doing is not a criminal investigation at this time. That doesnt mean it wouldnt be at some point. It could be, well see what happens, but there are very adamant she is not the target of a criminal probe right now. So that could change. I think its really politics now. Im not saying no one did anything wrong, but the ramifications for her is politics. Ifill there is also a house investigation still outstanding. Yes, there is a house investigation and shes going to testify october 22, so that will be a big deal. And the other thing that keeps coming up is the state department is releasing the emails. They have to, as part of a lawsuit. So at the end of every month and well see in at the end of august, well see more emails. Every time a new batch comes out, there is all sorts of new stories to talk ability. Ifill we know who will be reading them all. Anita kumar, mcclatchy newspapers, thank you very much. That for u. S. Companies doing a woodruff world stock and currency markets were rocked for a second straight day today as china continued to devalue its currency, the yuan. While the drop is not expected to have a big affect on most americans, and the tumult on wall street had calmed by days end, some analysts are saying that for u. S. Companies doing a lot of Business Inside china among them, apple, cocacola, and fast food retailer yum brands the change could hurt sales and trim profits. For more on chinas move and its ripple effects we turn to eswar prasad, professor of trade policy at Cornell University and mike mcdonough, chief global economist at bloomberg intelligence. We can toll you both. Eswar prasad, to you first, what does it say that the cheese banks second day in a row decided to let its currency be decide id by Market Forces . China is doing what it said it would do which is to let the currencies be determined by the market, and the market wants to push the yuan a little lower because chinas economy isnt doing so well, but there is a good side to it because china has been trying to open up its capital account, that is to make it easier for money to flow in and out of china and for good reasons, for diversification and so forth, a lot of money had been going out of china because households and corporations want to invest abroad. The difficulty is china is undertaking this move in a time when its good for china but not necessarily the rest of the world. The chinese economy has been weak, the central bank has been trying to do everything it can to prop up the economy, reduce Interest Rates, reduce the amount chinese banks have to keep at the central bank so there can be more credit for the economy, now theyre turning to the currency as an added boost. This may be good for china but it will be complicated for the rest of the world. Woodruff mike mcdonough, are we better able to today to tell whether this is driven by a drew desire for reform to let these currency rates be determined by market forms or is it all about boosting chinas lagging growth rate . Well, i think eswar hit the nail on the head where the timing is perfect. Its about the reform but its also about the devaluation you saw. Basically, china took a measure that is certainly going to help bolster their export sector but put a caveat on tend saying, going forward, well let the market set the rate. So if you were a policymaker, you got exactly what you want. But the problem is, by doing the sudden devaluation, they did lose a bit of credibility. So theres talk about the yuan, the i. M. F. Recognizing it as a global currency. What they need to do is prove, follow through, continue letting the market set the yuan. What youre seeing and why youre seeing so much turbulence in the market is because they did the 2 , they lost the credibility. People are scared now. People are concerned that if china continues slowing down, theyre going to do another one off the valuation, and thats a big risk. They need to follow through. There is an execution risk. They need to follow through with what they said. Woodruff eswar prasad, i know there are global implications, but lets focus on the united states. We mentioned u. S. Companies deeply invested in china. Where do they stand to comout of this