WASHINGTON -- Ellie Light, the ubiquitous letter writer arousing blogosphere suspicions that she is a White House operative spreading the gospel of Barack Obama, may really be a man who works as a respiratory therapist. Or it may be a woman who works as a traveling nurse. Either way, there's big trouble in his and her household. And the story gets stranger. It begins with The Plain Dealer's publication on cleveland.com Thursday that a woman using the name Ellie Light was duping newspapers nationwide by giving them "local" addresses in letters to the editor that she penned defending President Obama's...