We know that Russia has been honing its tools of disinformation since the Cold War, but how did Soviet-era sabotage make the jump into the digital age? How have imposters on social media caused real-world tumult? In Part II of a miniseries on Russian interference from The World's partners at the podcast "Raw Data," we get into the mechanics of it all by taking a look at two specific instances when Russia tested out its disinformation strategy inside the United States. Renee DiResta and Kate Starbird, leading experts in the burgeoning field of digital misinformation, bring us up to speed on how Russia honed its misinformation campaign in the lead up to the 2016 election.

What was the Trump administration's rationale for the targeted killing of Qasem Soleimani, the second most powerful figure in Iran? And, what's left of the international agreement that controlled Iran's nuclear program? The World's Shirin Jaafari has the latest. Also, an update on the Australian wildfires and the devastating impacts they're having on wildlife there. Plus, pop star Miley Cyrus has settled a $300 million copyright infringement lawsuit by Jamaican songwriter Michael May, aka Flourgon, over a line that she allegedly ripped off of his 1988 track "We Run Things."