b'It can be difficult to trace the owners of Russian superyachts, but authorities continue to find selfies on social media that help link oligarchs to their boats. In congressional news, Stephen is still waiting for an answer from Senator Chuck Grassley about the alleged annual gathering known as Chuck Grassley\\u2019s Ass Jamboree. Next, in the latest edition of \\u201cCyborgasm,\\u201d Stephen examines a robot that feeds treats to your dog, and takes a cautious look at China\\u2019s latest space exploration technology. Elle Fanning makes her first visit to The Late Show for a chat about how she got into character for the very complicated role she plays in the new series, \\u201cThe Girl From Plainville,\\u201d streaming now on Hulu. And former \\u201cLate Show with David Letterman\\u201d page Ben Schwartz returns to the Ed Sullivan Theater for the first time in decades to tell Stephen about his new film, \\u201cSonic the Hedgehog 2,\\u201d which opens in theaters on April 8th.\\nLearn more about your ad choices. Visit podcastchoices.com/adchoices'