The irony of NPR calling racism an undercovered story is rather intense. The only show not about racism on NPR was Car Talk, and Car Talk got canceled.
They started re running in the mid 2000s, not very much new content even that early.
I still get a kick out of hearing the brothers talking on "Cars", the animated kid's show.
I'm not sure, maybe you're joking? Car Talk was probably canceled because of Tom's death.