The Guardian charted the path the dirty dossier made from a British intelligence professional to Sen. John McCain and then the FBI McCain, 80, put out a statement Wednesday saying that he was the bureau's source of the controversial dossier The Arizona Republican found out about the dossier's existence while at a meeting in Canada and dispatched an emissary to hunt it down He met an ex-British diplomat in Canada - now identified as Sir Andrew Wood -who in one version of events told him about the file Wood is a former associate of Tony Blair the ex-British prime minister,...