Jon Stewart, the host of Comedy Central's Daily Show, has been not-so-quietly waging war with Fox News for years -- and recently he's been turning up the heat. His most recent battle with the News Corp. (NWS)-owned network hinged on an airing of Fox & Friends, which two weeks ago asked (more than once) whether the crescent-moon shaped logo that the White House used during a nuclear security summit was some sort of Islamic image. As the New York Times recently reported, Stewart had his staff call the White House to ask just that, and lo and behold, discovered that...