Does public radio sound too 'white'? NPR itself tries to find the answer.

It's a question sometimes whispered but never boldly confronted: Does NPR, and public radio in general, sound too "white"?NPR itself suggested Thursday that the answer might be yes in an unusual bit of public self-examination. In a commentary aired on "All Things Considered," its signature newscast, and in a subsequent Twitter chat that quickly trended nationally, the public radio network lit the fuse on an explosive discussion about how a broadcast should sound.