Why Doonesbury isn't in the Chicago Tribune this week

Why isn't Doonesbury appearing in the Chicago Tribune this week? The strips "do not meet our standards of fairness."

The “Doonesbury” strips refer to allegations purportedly contained in an as-yet-unreleased book about former Gov. Sarah Palin (R-Alaska). The book is not yet available for verification or review by the Chicago Tribune. To be sure, “Doonesbury” is a satirical cartoon, but the remarks are serious enough that we cannot publish the strip without more information, context and a response from Palin.