NEW YORK -- A principal source for the CBS story about President Bush's National Guard duty was Bill Burkett, a disgruntled former Guard officer who lives in Baird, Texas, who says he was present at Guard headquarters in Austin in 1997 when a top aide to then Governor Bush ordered records sanitized to protect the Boss, Newsweek reports in the current issue. Typed memos from the early '70s suggesting officers were pressured to give Bush special treatment and "sugarcoat" increasingly negative evaluations were a central part of the CBS report. Other Guard officials disputed Burkett's account and the Bush aide...