Tavis Smiley ends NPR program Thursday

"Tavis Smiley will give his last thoughts on Thursday, the final broadcast of his National Public Radio program. Mr. Smiley, the host of NPR's first predominantly African-American show, declined to renew his contract, in part, he said, because the network failed to meaningfully reach out to a minority audience."
from the New York Times
His thoughts on leaving (from poynter.org) and NPR's response (from npr.org).