Terry Gross

In 2008, historian Tony Judt was diagnosed with ALS, a progressive motor-neuron disease. For the past several months, Judt has been writing a series of essays for The New York Review of Books, charting life in what he calls a "progressive imprisonment without parole."

The number of hate groups in the United States continues to rise, says Mark Potok of the Southern Poverty Law Center. Potok discusses how the rhetoric of hate groups has increasingly entered the mainstream in the wake of the nation's changing demographics and the election of President Obama.

The bawdy, crudely animated sitcom South Park is about to celebrate its 200th episode. Creators Trey Parker and Matt Stone go behind the scenes of some of their favorite episodes and explain how they come up with the weekly parodies.