Today on Boston Public Radio:

We start the show by opening phone lines, asking listeners whether they thought colleges should mandate vaccines for returning students.

Jonathan Gruber shares his thoughts on President Joe Biden’s infrastructure plan, arguing that investment into infrastructure could create jobs across America. Gruber is the Ford Professor of Economics at MIT. He was instrumental in creating both the Massachusetts health-care reform and the Affordable Care Act, and his latest book is "startingamerica.com/">Jump-Starting America How Breakthrough Science Can Revive Economic Growth and the American Dream."

Juliette Kayyem discusses the nationwide move away from mass vaccination sites to private sites. She also shares what she thought we should be asking when a mass shooting occurs. Kayyem is an analyst for CNN, former assistant secretary at the Department of Homeland Security and faculty chair of the homeland security program at Harvard University’s Kennedy School of Government.

Ali Noorani explains how former President Donald Trump left an indelible mark on the U.S. Immigration Court system. He also discusses the spike in unaccompanied minors migrating to the U.S. Noorani is President and Chief Executive Officer of the National Immigration Forum. His latest book is "There Goes the Neighborhood: How Communities Overcome Prejudice and Meet the Challenge of American Immigration.”

Art Caplan weighs in on the Boston Globe’s Spotlight investigation that found that numerous Boston hospital CEOs moonlighted on corporate boards. He also touches on the controversy behind Dr. Oz hosting “Jeopardy.” Caplan is the Drs. William F and Virginia Connolly Mitty Chair, and director of the Division of Medical Ethics at the NYU School of Medicine.

Jared Bowen gives us his latest arts and cultural rundown, highlighting the American Repertory Theater’s “The Conjurors’ Club,” and the Museum of Russian Icons. Bowen is GBH’s executive arts editor and the host of Open Studio.

We wrap up the show by talking with listeners about emerging from pandemic hibernation.