the john and helen glessner family trust. supporting trustworthy journalism that informs and inspires.si the heisinns foundation: unlocking knowledge, opportunity, and possibilities. and by the frontline journalism fund, with major support from jon and jo ann hagler. ♪ >> momo (in cantones: (sniffles) (phone camera clicks) (sniffles) ♪ (sniffles) (peopltalking in background) >> narrar: it's the fourth month of pro-democracy demonstrations in hong kong. (people shouting) protesters have surrounded theol car of an off-duty pe officer. >> man (shouting): >> narrator: the city is in turmoil. >> man: >> officer >> man: (gun fires, people shouting) >> man: >> narrator: the officer shootsn jures a 14-year-old protester. (people shouting) how did one of the world's biggest financial centerssc d into such chaos and violence? and where will it end? (glass shatters) (peoplshouting) >> man: ♪ >> narrator: this film follows five young prosters through the most intense clashes. ♪ facing arrest for their actions, most are wearingasks and us

the john and helen glessner family trust. supporting trustworthy journalism that informs and inspires.he thing-simons foundation: unlocking knowledge, opportunity, and psibilities. and by the frontline journalism fund, withajor support from joand jo ann hagler. and additional support from chris and lisa kaneb. (man panting) >> man (in spanish): (people shouting) >> help! >> we need cpr! we need cpr! ♪ >> smith: the first call came o from a walrtthe u.s.-mexican border at 10:39 a.m. unshots bang) the killing spree lasted severau s. 22 people dead. ♪ ny of the victims were mexican-americans. eight were from el paso's ster city, juárez. >> i know that walmart really well, and i know who shops there-- it's a very popular coming legally across thehoppers border. >> hands up, hands up! >> so i knew the place was going to be packed with mexican shoppers, and also with el paso families because school was getting back in session.>> go! go! go! come on! ten deadliest mass shootings in u.s. htory. >> the suspect alive in police >> smith

the john and helen glessner family trust.ns foundation:dg unlocking know opportunity, and possibilities. ontline journalism fund, with major support from jon and jo ann hagler. captioned by media access group at wgbh access.wgbh.org >> for more on this and other "frontline" programs, visit our website at pbs.org/frontline. ♪ frontline's, "battle for hong kong" is available on amazon prime video. ♪ ♪ ♪ you're watching pbs. ♪ ♪ at the just for laughs festival in montreal. he was a two-time stand-up comedy competitionhampion, so start clapping right now, and make some good noise for jeremy mclellan, everybody! [ cheers and applause ] -i do a lot of material, on politics, anything that people are alually not supposed toabout in polite company. i travel full-time, and whenever i travel, people always assume that just because i'm from south carolina, i mustcist. but, like, south carolina, we actually have a very rich, progressive history. i don't f you know this, but we actually started the war that ended slavery. [ laughter ] so y

thjohn and helen glessner family trust. supporting trustworthy journalism that informs and inspires. the heising-simons foundation: opportunity, and possibilities. and by the frontline journalism fund, with major support from jon and jo ann hagler. and additional support from ura debonis and scott nathan. >> jeff bezos has already conquered the retail frontier. now he's got a plan to colonizel thets. >> bezos is laying out his plans for colonizing space. >> bezos is known for going big, d now he's literally shooting for the moon. >> narrator: in may of 2019, jeff bezos, the richest person on the planet, unvled his latest invention. >> this is blue moon. it's time to go back to theim moon, thisto stay. >> jeff has said over and over again that the most important work he's doing is work in space. what he's built in amazon is really imptant and really interesting, and it's, it's relutionized commerce. but it's only revolutionized commerce. >> narrator: bezos's plan is to chart a new course for the future of humanity. >> manufa