judy and josh weston and by contributions from viewers like you.nk you. >>> welcome to the program, everyone. i'm christiane amanpour in london. in a world more interconnected than ever, we could not be more divided from the kavanaugh hearings to elections to climate change. here to save the day, though, neil de grasse tyson, connecting the dots between two vastly different universes. in his new book, "accessory to war: the unspoken alliance between astro physics and ministry," he explains the straight line within that relationship. when i spoke to him from new york, we discussed the way astro physics affects everything from the gulf war to tinder to climate change and to our politics. even to truth. neil de grasse tyson, welcome to the program. >> thank you. thanks for having me. >> okay. so what is this accessory to war? why is that the sub title of your book? and it's kind of alarming that astro physiciani astro physician physics would be an access tree ory to war. >> it shocks people. it might not be upsetting to some, who sort of -- who are so

judy and josh weston. and by contributions to your pbs station from viewers like you. thank you. >>> welcome to the program, everyone. i'm chris yawn atiane amanpour. america seems more divided than at any time in our recent memory, coming apart at the seams you might say. so what better time to talk to dave sh pel and jon stewart? two of the most important voices in contemporary culture. both have redefined the boundaries of storytelling. with his sketches on chapelle show, dave skewers racial stereotypes and is an international sensation. and jon ever since helming "the daily show" became almost more relevant than traditional news ank anchors with his satire laser focused on the truth and lies of current political discourse. away from the small screen, though, stand-up is a vital part of any comedians' dna and the two have teamed up for rare performances in the united states and europe, tackling issues like gun violence, the twitter era, and what it's like to raise kids in 2018 amid mounting political uncertainty. i caught up with them at london's royal albert hall t

judy and josh weston. and by contributions to your pbs station from viewers like you. thank you. >>> welcome to the program, everyone. i'm christiane amanpour in london. an estimated 7,500 migrants are heading north through mexico fleeing violence and poverty in guatemala and honduras and hoping to reach the united states where they plan to seek asylum. reporters on the ground say the migrant caravan consists of thousands of families including many mothers and children facing starvation and attacks on the long march north. reporters and aid agencies see a full-blown humanitarian crisis developing, but president dronad trump lashed out in now-familiar terms especially ahead of midterm elections. >> going to the middle of the caravan, take your cameras and search. you're going to find ms-13, you're going to find middle eastern, you're going to find everything. >> but a senior counterterrorism official contradicted trump's insinuation saying we do not see any evidence isis or other sunni terrorist groups are trying to infiltrate the southern u.s. border. correspondent bil

judy and josh weston, by contributions from your pbs station from viewers like you. thank you. >> welcome to the program, everyone. i'm christiane amanpour from new york. america has suffered hate filled violence, attack on african-americans at a kentucky supermarket. political with a pipe bomb mailings to cnn. and religious inside a pittsburgh synagogue that killed 11 worshippers. american jews are reeling from a resurgence of anti-semitism in this country the one they felt the most safe in where a mass murderer is saying he wants all jews to die seems like a relic from distant pass. it wasn't ancient history to rose, the much loved 97-year-old killed that morning. she was there when jews were exterminated during world war ii. as america tries to make sense of the violent, whatever the perceived thoughts of the mexican migrants coming across the border most attacks in the united states were in fact carried out by homegrown extremists and just plain haters. >>> a spiritual leader at new york's congregation, rabbi jeremy helped lead an interfaith prayer vigil last nig

. >>> additional support has been provided by the cheryl and philip milstein family, judy and josh westonnd by contributions to your pbs station from viewers like you. thank you. >>> welcome to the program, everyone. i'm christiane amanpour in london. >>> welcome to the program, everyone. i'm christiane amanpour in london. saudi arabia has admitted that the killing of the journalist jamal khashoggi was a huge and grave mistake, but the kingdom's account of his death claiming that he died in a fistfight during a, quote, rogue operation in their consulate in turkey, has done little to blunt the international uproar and skepticism. new details of khashoggi's death highlight inconsistencies in the saudi story like this still image from security footage. it shows a saudi operative trying to pass as khashoggi apparently wearing khashoggi's clothes. he was leaving the consulate by the back door the very day that khashoggi was killed. meanwhile, turkey's president erdogan is promising to reveal the incident in all its naked truth. so what should the world do? what should the west do? the german c