Domestic 'Troll Farms'; Mosaic Arctic Expedition

We talk to Graham Brookie of the Atlantic Council about Turning Point USA, a pro-Trump youth group that has been paying young conservatives to make false posts online claiming that mail-in ballots will lead to election fraud. Brookie says this kind of domestic misinformation is more dangerous than foreign because of its scale and scope. Also, a group of researchers from 20 countries is about to conclude what they're calling the largest polar expedition in history. We talk to one of the researchers. That and more, in hour one of Here & Now's Sept. 25, 2020, full broadcast. You can find more at hereandnow.org — and follow us on Twitter, Instagram or join the conversation on Facebook.