i'm happy to present john mcwhorter. we're lucky that john has come more than once. he has been very kind about that. this is his third visit. tonight he will speak about his most recent book, "talking back, talking black, truth about america's lingua franca." john mcwhorter is associate professor of english and comparative literature at columbia university where he teaches linguistics, western civilization, music history and american studies. "new york times" best-sellerring author and columnist for "time" magazine and regular contributor to the atlantic, "the wall street journal," and "the washington post" and he is the author of 16 books, and tonight he is going to be speaking about his most recent book, "talking back, talking black." without further adieu, john mcwhorter please. [applause] >> thanks, folks. thank you for coming here tonight. what i want to talk to you about, for not too long is the last book that i published which was called, "talking back, talking black." itit had a very compact thesis. i wanted to see if i could make the general public have a m