To celebrate two decades of Riverwalk Jazz on public radio, Jim Cullum welcomes top young jazz artists from nearby Austin—and the Band cuts loose with piano sensation Shelly Berg. Later, series favorites Vernel Bagneris and Topsy Chapman sit in with an impromptu blues improvisation.

This week on Whad'Ya Know?... All the News that Isn't... author Michael Greenberg on life as a writer... Pearisburg, Virginia, our town of the week... and the Whad'Ya Know? Quiz! From Wisconsin Public Radio and PRI-Public Radio International.

Around the World, in Miles