additional support is provided by the abrams foundation, committed to excellence in journalism. ic awareness of critical issues. the john and helen glessner family trust. supporting trustworthy journalism that informs and inspires. and by the frontline journalism fund, ann hagler.upport from jon and and additional support from laura debonis and scott nathanand koo and patricia yuen through the yuen foundation. captioned by media access group at wgbhor access.wgb >> for more on this and other "frontline" programs, visiour website at pbs.org/frontline. ♪ to order frontline's, "for sama" on dvd, sit shoppbs or call 1-800-play-pbs.am this pros also available on amazon prime video. ♪ ♪ you'reatching pbs. ♪ ♪ ♪ ♪ ♪ ♪ ♪ [ insects chirping ] woman: [ speaking spanish ] ♪ ♪

additional support is provided by the abrams foundation, committed to excellence in journalism. dedicated to heightening public awareness of critical issues. the john and helen glessner family trust. supporting trustworthy journalism that informs and inspires. and by t frontline journalism fund, with major support from jon and jo ann hagler. and additional support from laura debonis and scott nathan, and koo and patria yuen through the yuen foundation. ♪ >> waad (speaking arabic): (babbabbling)>> am mama. mama. (singing in arabic) mama, sama. (explosion in distance) sama. (baby babbling) (man's voice speaking aric) (sama and man conversing inab ic): (indisnct conversation) (distant exploon) (nearby explosion) (footsteps on stairs, coughi) >> waad: >> man: (baby crying) (explosion) (explosion) (man shouting) >> man: (machines beeping) (explosions) >> waad: (baby crying) (group conversing) (sama babbling) (waad laughs) >> man: (making bubbling sounds) (sama laughing) >> sama. aby laughing) >> waad: ♪ (explosions) (baby crying, people shouting) (crying) ou (s of distant aircraft) aa >> (nume

at fordfoundation.org.ti adal support is provided by the abrams foundation, committed to excellence in journalism. the park foundation, awareness of critical .g public the john and helen glessner family trust. supporting trustworthy journalism that informs and inspires. and by the frtline journasm fund, with major support from jon and jo ann hagler. and additional support from koo and patricia yuen, through the yuen foundatio ♪ my >> durg the summerncle asked me if i wanted to go, like, learn the job that he was doing. my mom wanted me to go so that s can see how hard io work out in the sun. what they did was, like, just started a house from the bottom i always like working with my hands or just, like, learning new things. ♪ then that day that we were heading back, i was on my phone. and, hector, he starts saying that, "nah, there... the cops are coming." (chatter on police radio) so, my uncle pulls over, and all he tells us is, "just relax, nothing's wrong." (chatter on police rad) the cop came, started asking for our papers, if we had any, identificatierything. >> police officer: >>

visionaries on the frontlines of social change worldwid additional support is provid by the abrams foundation, committed to excellence in journalism. the park foundation, dedicated to heightening pububc awareness s critical issues. the john and helen glessner family trust. ppororng trustworthy journalism that informs and inspires. and by thejo frontlinnalism fund, with major support from jon and jo ann hagler.ad antitial support from tom m air and lucy caldwell-stair. major support for frontline and, "in thage of ai" is provided by the corporation for public broadcasting. ♪ most complex board game. world's there are more possible moves in the game of go than there are atoms in the universe. legend has it that in 2300 bce, emperor yao devised it to teach his son discipline,, concentration, and balance. and, over 4,000 years later, this ancient chinese game would signal the start ow industrial age.. ♪ it was 2016, in seoul, south korea.s >> can machiovertake humante lligence? a brkthrough moment when the world champion of the asian board game go takekeon an a.i. program developed d google. >> (

additional support is provided by the abrams foundation, committed to excellence in journalism. sues. the john and helen glessner family trust. supporting trustworthy journalism that informs and inspires. and by the frontline journalism fund, with major support from jon and jo ann hagler. and additional support from tom stair and lucy caldwe-stair. major support for frontline and, "in the age of ai" is provided by the corporationca for public broing. captioned by media access group at wgbh access.wgbh.org >> for more on this and other "frontline" progra, visit our website at pbs.org/frontline. ♪ to order frontline's, "in the age of a.i." on dvd, visit shoppbs or call 1-800-play-pbs.is rogram is also available on amazon prime video. ♪ re ♪ you'atching pbs. ♪ christiane: can you tell us what ♪ fire before us. ♪ you're the brightest. judy: turning ba t now to the race for white house. ♪ you will lead us through the storms. ♪ robert: the state board of election voted thursday to set up a new election. t rchristiane: it m a veryof emotional day. ♪ i will trust the promise. myamiche: c