Contentious exchanges between White House press secretaries and members of the media have been fairly commonplace during the past few presidential administrations. However, the one that took place Wednesday between White House press secretary Robert Gibbs and April Ryan of American Urban Radio, in which Gibbs essentially compared Ryan to a petulant child, is among the most heated (and entertaining) in recent memory. The testy exchange was sparked by Ryan's insistent questioning of White House social secretary Desiree Rogers' role at the recent state dinner, which has been in the headlines because of the fallout from Tareq and Michaele Salahi's...