What should I ask Chuck Klosterman?

I will be doing a Conversation with him.  If you do not already know, here is part of his Wikipedia entry:

Charles John Klosterman (born 1972) is an American author and essayist whose work focuses on American popular culture. He has been a columnist for Esquire and ESPN.com and wrote “The Ethicist” column for The New York Times Magazine. Klosterman is the author of eleven books, including two novels and the essay collection Sex, Drugs, and Cocoa Puffs: A Low Culture Manifesto.

His forthcoming book is about the 90s, namely The Nineties: A Book.  So what should I ask him?  Including about the 90s of course.