If Sarah Palin, with her mega-wattage superstar status sucking up all the available oxygen in the room, is it worth sharing a stage and competing for some attention? Between now and the first GOP nomination season debate a year from now, that will be the question asked over and over again by the smart political operatives plotting Tim Pawlenty's, Mitt Romney's, and other nonreality show starring Republicans' paths to the White House. The cattle call season for the 2012 Republican presidential hopefuls is upon us, but the media obsession with all things Palin and her knack for dominating a news...