and paul salopek joins me again. paul, tell our audience where we find you now? of the walk. this is kind of where the silk road butted up against the caspian sea and you might be able to hear a little bit of surf in the background. and it's a very off the map place. i mean it's about 100-150,000 people, an old uranium mining town under the soviet era. and i'll be walking due east from here as the sun rises towards china. >> sreenivasan: how long to get to china? >> it's going to be an interesting passage. if the weather cooperates-- i have some big mountains to go over-- maybe as soon as this coming winter but more likely spring time. it's about 3,000 km away. >> sreenivasan: and these 3,000 kilometers are different geographically and topographically than what you've already covered, right? >> yeah, they are. they're very different. as you recall, the last time i reported in, i was in the caucasus, which is a very, relatively heavy populated corner of the world, very rugged, mountainous-- also a crossroads of the world. lots of different cultures, languages, anc

paul salopek talks about entering a new phase in his journey. >> it's going to be more like an expedition this time, rather than walking from farm to farm. i'm going to actually have to camp out and look for water and go into survival mode on this stretch. >> woodruff: plus, with the presidential race all coming down to a numbers game, we take

on friday we check in with paul salopek, the man walking across the world. i'm judy woodruff. i'm hari sreenivasan. for all of us at the pbs newshour, thank you and good night. >> major funding for the pbs newshour has been provided by: ♪ ♪ moving our economy for 160 years. bnsf, the engine that connects us. >> lincoln financial-- committed to helping you take charge of your financial future. >> the lemelson foundation. committed to improving lives through invention. in the u.s. and developing countries. on the web at lemelson.org. >> and with the ongoing support of these institutions >> this program was made possible by the corporation for public broadcasting. and by contributions to your pbs station from viewers like you. thank you. captioning sponsored by newshour productions, llc captioned by media access group at wgbh access.wgbh.org >>> this is "nightly business report." with tyler mathisen and sue herera. >>> huge beat. amazon crushes earnings estimates, reporting its fourth straight profitable quarter as its heavy investments start to pay off. >>> he's out. influential