zhang hopes to try this on humans soon. if crispr is used to treat disease or make a drug, it could mean big bucks. the broad and fang zhang hold a primary patent for crispr's use in human cells in the u.s. but no technology is developed in a vacuum. biochemist jennifer dowdner at the university of california berkeley and her team made landmark crispr discoveries. >> this is no longer science fiction. >> reporter: this week they are challenging zhang and the broad in court for the rights, arguing in part that zhang's advance was derived from her team's breakthrough. it's a high-stakes battle. crispr is projected to be a multibillion-dollar market in a decade. >> does that mean big business for you? >> i think we're still quite a ways away from developing crispr into a real therapeutic. >> i think you're being a little bit modest. i mean, this is sparking an incredible boom in biomedicine. and you're in the center of it. >> i think there's still really a lot of work that still need to be done developing the systems so they a

michele melis speaking italian] [serena bonifaclo speaking italian]] [indistinct chatter] [sirens] [zhang ying speaking] [sirens] [captain gabrhiwot gebru speaking amharic] [indistinct chatter] [crowd cheering] announcer: coming up on a future edition of "21st century"... [souleymane traore speaking bambara language] [boubakar sidiki samake speaking french] zñvpx] >>> hi, i'm james tengan in tokyo, this is nhk newsline. >>> we start in singapore where u.s. president donald trump has held a press conference about his h historic meeting with north korean leader kim jong-un. >> my meeting with chairman kim was honest, direct, and productive. we got to

the pretty barren zhang's on mine less anxiety. these benefits just some of those promoted by moody he spit headed an initiative to reclaim the discipline as an historic part of indian culture. as modi took his place at the center of this gathering yogas reach extended across the country these policemen practicing the sun salutations in the indian himalayas just one of five thousand joke a day events in india. in myanmar to and across the globe people on it are practiced credited with balancing the body mind and spirit the word yoga means to attach to join to joke and today in india and elsewhere this ancient discipline has certainly brought people together and. for a drive that we did abuse for all of us in berlin thanks for the company i'll be back at the top of the hour with more world news followed by the day see you. make your smart smart with the usual smile. what you want what you want to. update. its story. you decide what's on. find out more ok w dot com support. for.

overturned the war crimes conviction and for vice president of the country democratic republic of congo zhangierre bender supporters of the celebrated in the capital kinshasa after hearing the ruling a majority of judges could not be held responsible for the atrocities of his militia which he sent into neighboring the central african republic in two thousand and two. u.s. special forces order. is one of two military personnel killed in somalia after an ambush by the armed group that happened at the joint u.s. somalia military outpost in the town of jamey a yemeni journalist has died two days after being released from detention by who the rebels son was rick was abducted a year ago his family told the association of yemeni journalists that he was tortured saudi authorities have detained another women's rights activist in the week the country issued its first driving licenses to female drivers. runs a charity for young people detention follows the quote temporary release of eight other activists those are the headlines and back with the news hour in thirty minutes stay with us. cairo the mornin

president arnold trump right in term pose a new tariffs against china trump says if they zhang goes ahead with the new taxes against u.s. kids washington or introduce a ten percent tariff on chinese imports worth two hundred billion dollars it is the latest step in the escalating trade dispute between the two countries beijing says it will respond with strong counter measures are china correspondent adrian brown has more from beijing. well in this dangerous game of bluff president donald trump has raised the stakes once more and on tuesday china's government hit back accusing the u.s. side of blackmail now president donald trump is threatening to impose additional tariffs on some two hundred billion dollars worth of chinese exports on top of fifty billion dollars worth of other chinese exports that identified for penalties at the end of last week now the u.s. side has said that china has been engaging in unfair trading practices it's accused chinese companies of the century stealing u.s. technology and forcing u.s. companies here in china to basically hand over sensitive know how in retur

my name is linda zhang chl i an associate with the law firm of perkins couie. i want to thank the many organizations and individuals who are here in support of this issue. for 61 years. the chinese exclusion act severely restricted immigration and entrance of chinese people in the united states. in the heart of san francisco one of the most diverse cities in the u.s., we still have a park named after a congressman who pushed to make that exclusion permanent. [inaudible] >> when the act was set to expire in 19, kahn introduced the kahn bill to make the act permanent. the chinese exclusion act when the chinese and americans became allies in world war ii. san francisco's a city of inclusion. our parks should celebrate inclusion now and carry that message for generations to come. thank you. >> supervisor yee: thank you. >> good morning, supervisors. my name is lindsey kwak. i'd like to give litit more background on julius kahn. he did not stop at the chinese. after the exclusion act was made permanent, he pursued the exclusion of nap s, asian ans and evenaid horrib

zhang and lin were arrested. >>6:05. new relief for the dozens of peopleorced out t ofheir apartment complex after a fire gutted it last month. the small businons administraill offer low-interest disaster loans to those businesses affected by the apartment complex in s centreville. they haventil august to ply. improply disposed smoking material started tfire. >>> this is a small thing but we want you to know about it. it is called the tiny house stival, and it is going on this weekend at the prince william county fairground it features live music, food, and more than 30 tiny recogniz pular televisionshows. >> one of the reasons folks like tiny houses,y' obviously, t cool, attraction to it, they're pul popular. but my personal opinion, since thel financial and rtate fall of 2008/2009, it gave a lot of people an opportunity to step back andhink how they want to own their life instead of their lives owning them. >> we need to de-clutter their lives. >> i don't know, man. it's a little tight in the house already. n you have

zhang wenzhong was released in february after 12 years in prison. the court called his case "a misapplication of the law." the decision came as the ruling communist party tries to reassure nervous business leaders. back in this country, sears is closing another 72 stores to stem financial losses. that will leave the company with 800 outlets, down from a peak of 4,000 back in 2012. and, on wall street, stocks fell today on worries about the budding tariff war. the dow jones industrial average lost 252 points to close at 24,415. the nasdaq fell 20 points, and the s&p 500 gave up 18. still to come on the newshour: the e.u. ambassador responds to new taxes on europe's exports to the u.s. amid an immigration crackdown, we speak to the outgoing director of immigration and customs enforcement. the economic consequences of educating women, and much more. >> woodruff: the united states and north korea continued to meet at high levels today, trying to bridge their differences and pave the way for a summit between president trump and north korean leader kim ju