See earlier thread: FR Exclusive: Howard Dean donor writes novel on how to assassinate Bush ********************************************************************** NEW YORK - Yes, there are limits to what George Bush (news - web sites) haters will read. "Checkpoint," the controversial Nicholson Baker novel about a man who wants to kill the president, has sold fewer than 6,500 copies since coming out two weeks ago, the book's publisher said Friday. "Not every book you publish becomes a best seller," said Paul Bogaards, executive director of publicity for Alfred A. Knopf. Bogaards said sales for the book, which had a first printing of 60,000, had...