On one side you have aspiring data scientists eager to put their knowledge to work. On the other side, you have non-profits and other groups trying to come up with innovative ways to make the world a better place. We talk to a couple of guys who are putting those sides together at the University of Chicago. Then, remembering your lines for a play is hard. Remembering them without any cues from other actors has got to be really hard. Actor Ronald Keaton talks about flying solo on stage when he becomes Winston Churchill. Plus, some soaring harmonies from the DuPont brothers. And we start the show by speaking with Chicago Police Department communications director about the department’s tweetalong.