Today on Boston Public Radio:

We opened the show by hosting an hour-long debate on Ballot Question 4, which asks voters if they want to keep or appeal a law in place allowing undocumented immigrants to obtain driver’s licenses. Sen. Brendan Crighton argued in favor of a Yes vote, which would keep the law on the books. Maureen Maloney, whose son was killed by an undocumented driver, represented the No side for Fair and Safe Massachusetts. Our listeners called in, gave their opinions and asked for clarification.

National Security Expert Juliette Kayyem discussed the police response to the shooting at Robb Elementary School in Uvalde, Texas, this past May. CNN released new audio of a 10-year-old calling from inside the classroom, 40 minutes before police officers breached the room. Kayyem also discussed the arraignment of Paul Pelosi’s attacker as well as the online misinformation that’s been fueling political extremism. Kayyem is the former assistant secretary for homeland security under President Barack Obama, and the faculty chair of the homeland-security program at Harvard’s Kennedy School of Government.

Wall Street Journal Tech Reporter Joanna Stern discussed Elon Musk’s strategy to try to make Twitter profitable and what that could mean for the user experience. She also explained the technology behind Apple’s new crash detection system. She ended by explaining some of the stumbles that Mark Zuckerberg has experienced in trying to push his Metaverse on the rest of the world. Joanna Stern is the Senior Personal Technology Columnist at the Wall Street Journal.

Retired Federal Judge Nancy Gertner joined to talk about the implications of people staking out ballot drop boxes in Arizona and how it amounts to potential illegal voter intimidation. She provided updates on the multiple legal issues that the Trump family and their namesake company face in civil and criminal court. She ended by explaining the legal arguments behind affirmative action cases before the Supreme Court. Gertner is a retired federal judge and a senior lecturer at Harvard Law School.

Chris Kimball of Milk Street discussed his new book "Cook What You Have," a guide on crafting cuisine from what’s left over in your pantry. He also discussed his new show on Roku, “Milk Street Cooking School.”

We ended the show by asking our listeners a very important question: do you brush your teeth before or after breakfast?