Not just the Guardian. But the New York Times. See the link in the Guardian article to....
http://www.nytimes.com/2010/04/28/books/28laura.html?ref=books
But still - you comment is still applicable.
“Consider the source.”
They’re reporting it from excerpts from HER book.
“Due to be released May 4 but acquired early by The New York Times, Mrs. Bush says she and former President George W. Bush became mysteriously sick on the Germany trip to such a degree that the president became bedridden. According to Mrs. Bush, doctors and the Secret Service investigated the possibility that a poisoning had occurred but were unable to make a definitive conclusion.”
http://www.cnn.com/2010/POLITICS/04/28/laura.bush.book/
Reading some of the responses in the New York Slimes made me want to almost throw up