The Culture Show's Jared Bowen on Bob Ross' paintings on the auction block to support public media, "Sardines" at the Huntington,  Taylor Swift's record-breaking record sales, and other arts and culture news. 

Harvard national security expert Juliette Kayyem on President Trump's troop orders to Portland and Chicago, the air traffic controller debacle nationwide, and more. 

Political philosopher Michael Sandel (author of the celebrated 1996 book "Democracy's Discontent") joins us ahead of his GBH Ralph Lowell Annual Lecture Thursday night.

Tufts food policy analyst Corby Kummer is joined by retiring Washington Post food critic Tom Sietsema, who exposes his face to us for the first time.