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by the corporation for public broadcasting... and by contributions to your pbs station from viewers like you. thank you. to learn more about what you've seen on this "nature" program, visit pbs.org. a past they never knew... until now. a. cooper "it's incredible!" in his new season on pbs, henry louis gates jr. helps them uncover the truth about where they come from. s. field "i can't believe that these documents even exist!" c.b. vance "wow!" get to know them, as they discover who they really are. k. alexander "that's pretty amazing." finding your roots with henry louis gates, jr. starts tuesday, september 23rd - only on pbs. the women were breaking the glass ceiling and that just thrilled me. we're traveling back in time... wow. ...to help solve family mysteries. no way that's amazing. fdr: a new deal for the american people. we wouldn't be who we are without them. ♪ ♪ i just got to get get get on back to my home at any cost now now ♪ [laughing] connected every day in a thousand unseen ways. but sometimes these connections can

and by the corporation for public broadcasting. major support for frontliis provided by the john d. and catherine t. macarthur foundation, committed to building a more just, verdant and peaceful world. more information is available at macfound.org. additional support is provided by the park foundation, dedicated to heightening public awareness of critical issues. the ford foundation, working with visionaries on the front lines of social change worldwide. at fordfoundation.org. the wyncote foundation. and by the frontline journalism fund, with major support from jon and jo ann hagler. >> narrator: in sierra leone, west africa, a catastrophe is unfolding: the world's deadliest outbreak of ebola. sebastian stein is part of the team at an emergency field hospital that's been built by the relief group doctors without borders. >> you see patients in the most horrible states, and you can have patients who come in one day, and the next day i'm packing them in a body bag. people are dying left and right here. >> narrator: another patient has

additional support is provided by: and by the corporation for public broadcasting and by contributions to your pbs station from viewers like you. thank you. from the tisch wnet studios in lincoln center in new york, hari sreenivasan. this is pbs newshour weekend. >> stewart: good evening, thanks for joining us. i'm alison stewart. hari sreenivasan is off. the united states and its allies took new steps today to try to limit the islamic state's ability to fund itself. reportedly carrying out air strikes against refineries that the jihadists control in northeastern syria, near the city of raqqa. this, as a top obama administration official appeared on the sunday talk shows to explain the administration's approach toward defeating the militant islamic group. >> what we're not going to do is fall into the al-qaeda trap of sending hundreds of thousands of americans back. that's exactly what they want. they want to bog us down, tie us down, and bleed us. but house speaker john boehner insisted today that air power alone could not defeat these extremists. >> if nobody else will step up, would

and by the corporation for public broadcasting. major support for frontliis provided by the john d. and catherine t. macarthur foundation, committed to building a more just, verdant and peaceful world. more information is available at macfound.org. additional support is provided by the park foundation, dedicated to heightening public awareness of critical issues. the ford foundation, working with visionaries on the front lines of social change worldwide. at fordfoundation.org. the wyncote foundation. and by the frontline journalism fund, with major support from jon and jo ann hagler. and additional support from millicent bell through the millicent and eugene bell foundation. >> narrator: jiro ishimaru is a journalist trying to expose what kim jong un's regime wants to hide: the secret world of the north korean people. he has an undercover network which covertly films life inside the country. >> (translated): obviously, it's an extremely dangerous thing to do. in north korea, even filming everyday life is considered a form of politic

additional support is provided by: and by the corporation for public broadcasting and by contributions to your pbs station from viewers like you. thank you. from the tisch wnet studios in lincoln center in new york, hari sreenivasan. this is pbs newshour weekend. >> sreenivasan: good evening, thanks for joining us. the united states has intensified its bombing campaign in iraq against fighters from the islamic state extremist group. the pentagon said the latest attacks occurred late last night on several militant positions near the haditha dam, about 175 miles from baghdad. at a news conference today, defense secretary chuck hagel explained the risks of extremists seizing or destroying the dam. >> the damage that would cause would be very significant and it would put a significant additional and big risk into the mix in iraq. >> sreenivasan: arab foreign ministers, meeting in cairo today, backed a resolution calling for action against the extremists in iraq. and several senior muslim clerics have now issued fatwas against the islamic state in an effort to stop young people from joining

additional support is provided by: and by the corporation for public broadcasting and by contributions to your pbs station from viewers like you. thank you. from the tisch wnet studios in lincoln center in new york, hari sreenivasan. >> sreenivasan: good evening, thanks for joining us. ukraine continues to be a flashpoint-- officials there say a navy vessel came under fire earlier today from pro-russian rebels on shore. but overnight, there was a rare moment of cooperation between russia and ukraine. in an exchange at the border, nine russian soldiers were swapped for 63 ukrainian soldiers. all this as the european union draws up tougher sanctions on russia. and the ukrainian port city of mariupol continued to brace for an attack from pro-russian fighters who have made advances in the area this week. while some residents of mariupol have fled, others have taken to the streets to demonstrate support for the ukrainian government. for the latest we are joined via skype from mariupol, ukraine by james marson of the wall street journal. journal, prisoner exchange is this a signal that tensi

additional support is provided by: and by the corporation for public broadcasting and by contributions to your pbs station from viewers like you. thank you. from the tisch wnet studios in lincoln center in new york, hari sreenivasan. >> sreenivasan: good evening. thanks for joining us. in a major reversal, white house officials said today president obama will delay any executive action to reshape the nation's immigration system until after this november's mid-term elections. the president had pledged to act by the end of the summer. white house officials are now saying he will do so before the end of the year. the decision to delay the process is seen as an effort to help democrats in difficult reelection races. nearly 20% of women in the united states have been raped and nearly 44% have been the victims of some sort of sexual violence. this, according to a new report released yesterday by the centers for disease control, the c.d.c. the findings were based on a survey of 12,000 people conducted on both cell phones and landlines. the vast majority of the violence is reportedly perpetrat

additional support is provided by: and by the corporation for public broadcasting and by contributions to your pbs station from viewers like you. thank you. from the tisch wnet studios in lincoln center in new york, hari sreenivasan. this is pbs newshour weekend. >> sreenivasan: good evening. thanks for joining us. british prime minister david cameron reacted with outrage today to the beheading by islamic state extremists of british aid worker david haines. >> they claim to do this in the name of islam. that is nonsense. islam is a religion of peace. they are not muslims, they are monsters. >> sreenivasan: appearing on the sunday talk shows, white house chief of staff denis mcdonough said the killing, the third of its kind documented on videotape in recent weeks, illustrates the brutality of the group. >> we were obviously painfully aware of their barbarity and their nefariousness even before this video, but this obviously underscores it yet again. >> sreenivasan: administration officials said today that american allies have offered to participate in airstrikes against islamic state fi

additional support is provided by: and by the corporation for public broadcasting and by contributions to your pbs station from viewers like you. thank you. from the tisch wnet studios in lincoln center in new york, hari sreenivasan. >> sreenivasan: good evening. thanks for joining us. secretary of state john kerry traveled today to cairo to try to enlist egypt's support in what the white house describes as america's war against the islamic state, also known as isil. egypt is the most populous country in the arab world. >> it will be our goal in every meeting that we have on the international basis, together, working to degrade and ultimately to defeat isil. >> sreenivasan: in his weekly radio address, president obama also emphasized the need to build an arab coalition to fight the extremist group, which has seized significant portions of syria and iraq. but the president cautioned: >> to meet a threat like this, we have to be smart, we have to use our power wisely, and we have to avoid the mistakes of the past. >> sreenivasan: the iraqi prime minister, haider al-abadi, said today that

additional support is provided by: and by the corporation for public broadcasting and by contributions to your pbs station from viewers like you. thank you. from the tisch wnet studios in lincoln center in new york, hari sreenivasan. diswhref good evening. thanks for joining us. 49 turkish hostages who were held captive by isis militant for more than three months were welcomed home today by overjoyed relatives and friend. they'd be seized from the turbic consulate in the northern iraqi city of mosul which had been overrun by the militant. detailed of the freed hostages' cappities are vague but one set free was quoted as saying the group had been moved eight times and added, "we had toughidize, very bad days." analyst believe freeing of the hostages, among them children, diplomatics and turkish special forces, might pave the way for turkey to take a more active role in the military campaign organized by the united states against yi. in baghdad, thousand rallied to protest american involvement in the war against yi. the sunni extremist group. the shiite protesters held banners saying, "n

additional support is provided by: and by the corporation for public broadcasting and by contributions to your pbs station from viewers like you. thank you. from the tisch wnet studios in lincoln center in new york, hari sreenivasan. this is pbs newshour weekend. >> sreenivasan: good evening. thanks for joining us. world leaders are gathering in new york for a climate summit at the united nations on tuesday and today, hundreds of thousands of demonstrators gathered in cities around the world to demand faster action to reduce carbon emissions. last week, the national oceanic and atmospheric administration said this summer was the hottest on record and that this year is likely to be the hottest ever. we'll have more about all this in a moment. security has been stepped up outside the white house. following friday night's incident when an intruder made it over the fence along pennsylvania avenue, then raced across the lawn and actually got just inside the building before being tackled and arrested. officials identified the intruder as 42-year-old omar j. gonzalez, a veteran, who had done

for a longer retirement. >> additional corporate funding for "washington week" is provided by brigham and women's hospital. additional funding is provided by the annenberg foundation, the corporation for public broadcasting and by contributions to pbs stations from viewers like you. thank you. once again, live from washington, sitting in for gwen ifill this week, john harwood of cnbc and "the new york times." john: good evening. president obama's just wrapped up a week with nato allies under the backdrop of two crises brewing all summer. russia's expansion into ukraine, and the growing threat from islamic state terrorists in iraq and syria. earlier this week, video emerged of a second execution of an american journalist, steven sotloff, at the hands of isil. an act that appeared to strengthen the resolve of the u.s. and nato. >> have no doubt, we will continue and i will continue to do what is necessary to protect the american people. and isil poses a real threat. and i'm encouraged by the fact that our friends and allies recognize that same threat. >> our message is clear -- we are united in condemnation of hese barbaric and des peckable -- despicable acts. they should be very clear, these terrorists. t

additional support is provided by: and by the corporation for public broadcasting and by contributions to your pbs station from viewers like you. thank you. >> sreenivasan: good evening, thanks for joining us. i'm hari sreenivasan. because of wnet's american graduate day initiative, we are coming to you tonight from another studio in new york city. warplanes from the united states and allied nations struck islamic state fighters today in a town near the syria-turkey border. the jihadists have been battling kurdish forces there, causing hundreds of thousands of syrians to flee into turkey. two isis tanks reportedly were destroyed during today's allied bombings. but isis fighters later shelled the town, wounding several citizens. today, for the first time, british fighter jets flew missions over northern iraq. we'll have much more on the conflict in a moment. in hong kong today, police arrested several dozen pro- democracy demonstrators who had scaled a fence and occupied a plaza outside a government building. the week-long protests followed a ruling that the central government in beijin

. >> this program was made possible by the corporation for public broadcasting. by contributions to your pbs station from viewers like you. thank you. targets at islamic state again this evening with a new wave of airstrikes hours after president obama addressed the united nations general assembly and appealed for action against both islamist terrorists and russian aggression. margaret warner is in new york for the u.n. gathering. >> we come together at a crossroads between war and peace; between disorder and integration; between fear and hope. >> warner: that stark statement headlined the president's address on a raft of major dangers facing the world. starting with the renewed confrontation between russia and the west. mr. obama accused moscow of endangering the post-war order with its aggressive actions in ukraine. >> this is a vision of the world in which might makes right. a world in which one nation's borders can be redrawn by another. america and our allies will support the people of ukraine as they develop their democracy and economy. we will reinforce ou

american graduate is a public media initiative funded by the corporation for public broadcasting.most pbs stations will mark "american graduate day" with a special broadcast, featuring education secretary arne duncan, celebrities like tony bennett, and actress allison williams, and many others making a difference in the lives of young people. >> woodruff: it was an emotional night in the bronx as one of baseball's biggest stars delivered an inspired farewell. coming at a time when professional sports and athletes have been in the headlines for troubling or even criminal behavior. jeffrey brown has our look. >> brown: it was the fairytale ending to a career that's brought universal acclaim and admiration even from bitter rivals. on his last at bat on his home field at yankee stadium, derek jeter drove in the winning run against the baltimore orioles. jeter began his career in 1995 and has played two thousand seven hundred forty-five games, all as a yankee. he holds the sixth highest hit total in baseball history, won five world series rings and was selected as an all-star 14 times.

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the ongoing support of these institutions >> this program was made possible by the corporation for public broadcastingd by contributions to your pbs station from viewers like you. thank you. >> ifill: there were reports of heavy damage today after hurricane odile smashed ashore on mexico's baja california peninsula. the storm struck near cabo san lucas overnight with torrential rain, and sustained winds of 125-miles-an-hour. at daybreak, residents and tourists emerged to find debris and destruction everywhere. the storm blew out windows in homes and resort hotels alike, and left extensive flooding in its wake. it's now confirmed that two mediterranean shipwrecks have killed more than 700 people trying to reach europe from africa and the middle east. the international organization for migration said today the deaths equal the total for all of last year. the latest incidents occurred within the last week, off the coasts of malta and libya. more than half of air france's flights worldwide were halted today, as pilots began a one- week strike. the walkout targeted the airline's plans to transfer much of i

. >> this program was made possible by the corporation for public broadcasting.ributions to your pbs station from viewers like you. thank you. >> ifill: president obama spent this day trying to build support in congress and overseas in the run up to his nationally broadcast address. it's scheduled for 9 p.m. eastern time. the newshour will provide live coverage. the president is now widely expected to expand the month old air campaign against islamic state militants in iraq and extend it into syria. he'll lay out the strategy in his speech tonight. >> my fellow americans... >> ifill: it comes exactly one year since mr. obama addressed the nation on a possible military response to syria's use of chemical weapons. then, he sought congressional authorization. >> even though i possess the authority to order military strikes, i believed it was right, in the absence of a direct or imminent threat to our security, to take this debate to congress. >> ifill: but congress and the public proved skeptical, and the plan was ultimately shelved when syria agreed to hand over it

. >> this program was made possible by the corporation for public broadcasting. by contributions to your pbs station from viewers like you. thank you. >> woodruff: a chilling new warning today on the ebola outbreak in west africa. the world health organization projected an exponential increase in new cases. in a statement, the u.n. agency said: many thousands of new cases are expected in liberia over the coming three weeks. more than half of all the cases so far have been in liberia. the u.s. military now plans to assist setting up isolation units and providing security. hundreds of american children in ten states have fallen ill with a severe respiratory in recent weeks. the centers for disease control reports nearly 500 kids were treated at a single hospital in kansas city and many required intensive care. symptoms can include heavy coughing, fever and asthma-like breathing trouble. in ukraine, the cease-fire between government forces and rebels appeared to be holding after sporadic violations over the weekend. that word came as president petro poroshenko made

. >> this program was made possible by the corporation for public broadcasting. by contributions to your pbs station from viewers like you. thank you. >> woodruff: the u.n.'s nuclear watchdog conceded its progress investigating iran's nuclear program has hit a wall. the latest confidential report by the international atomic energy agency was obtained by several media outlets. it said the i.a.e.a. had satellite imagery showing ongoing construction activity at parchin military base, a suspected nuclear site. it also revealed tehran had only implemented three out of five measures to be more transparent, under a deal with the i.a.e.a. iran denies it wants or is working on nuclear arms. a plane chartered by coalition forces in afghanistan, and carrying about 100 americans, had to land in iran after filing the wrong flight plan. "the washington post" first reported the incident. iranian air traffic control reportedly asked the plane to return to afghanistan, but it didn't have enough fuel. a senior state department official said the issue has been resolved and the plan

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. >> 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: "islamic state" radicals declared today they've killed a second american hostage in syria. the announcement came hours after u.s. air-strikes aimed at the head of another major militant group in somalia. more about that later, in the news summary. first, the gruesome new video that purports to show a reporter being beheaded. >> woodruff: for the second time in two weeks, a chilling message preceded the murder of an american journalist. the victim this time: steven sotloff, a 31-year-old freelancer for "time" and foreign policy magazines. he went missing in syria last year. on the video, a hooded man with a british accent directs a message to president obama before killing sotloff. >> i'm back obama and i'm back because of your arrogant foreign policy towards islamic state, because of your insistence at continuing your bombings. you, obama, have yet again, through your actions, killed yet another am

corporate funding for "washington week" is provided by: prudential, brig a.m. and omen's hospital. >> additional funding is provided by the corporation for public broadcasting and by contributions to your pbs station from viewers like you. thank you. >>> next on kqed newsroom, nfl football players accused of domestic violence and a possible coverup. >>> a tale of two cities. voters in san jose and oakland will decide on their next mayors. >>> we have one more thing. >> apple gets into the watch business. is it a smart move? >>> plus, an exhibit of seldom seen images by robert frank. >> you see here a young artist of enormous talent figuring something out.