Palin's next book tour is evidence that she's not running

A Palin book tour will stir presidential speculation, but the decision by Palin — and the publisher — to launch it in the crucial opening weeks of the 2012 cycle should actually put a damper on that speculation. The tour will be paid for by HarperCollins, and the publisher will be in legal jeopardy should it appear to contribute in kind to a presidential campaign.