A sceptical knowledge-seeking society will always welcome controversy, criticism and inquiry, even about ostensibly long-settled ideas.
And free expression plays an indispensable role in society, sorting truth from falsehood.
Jonathan Rauch is a journalist, and author of a number of books.
While a very pleasant interviewee, it will be interesting to see how many of you he will agitate.
We make comment on Pope Francis; again, he is wrong.
Two Justices of the U.S. Supreme Court issue warnings about the state of America.
And once again, we visit The Mailroom.
File your comments and complaints at Leighton@newstalkzb.co.nz
Haven't listened to a podcast before? Check out our simple how-to guide.
Listen here on iHeartRadio

Leighton Smith's podcast also available on iTunes:To subscribe via iTunes click here
See omnystudio.com/listener for privacy information.