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Ahead on the 10/18 Maddow show

Tonight's guests:W.

Tonight's guests:

W. Kamau Bell, host of "Totally Biased" on FX, comedian and activist

Bob Herbert, distinguished senior fellow at Demos public policy advocacy center and a contributor for PolicyShop.net, former columnist for The New York Times

Here's a song!

And here's executive producer Bill Wolff with a look at tonight's show: