Americans are fast turning to mobile devices to get their news, resulting in stunning viewership declines for CNN and existence-threatening readership drops for newspapers, according to a new Pew Research Center survey. The winners: social network sites, online news and websites like the Drudge Report and Yahoo. In Pew's latest look at trends in news consumption, Americans said that they have turned away from CNN. In just four years, the percentage of those who say they watch CNN has dropped from 24 percent to 16 percent. Viewership of the competing cable giants, Fox and MSNBC, has remained fairly stable with...