CNN is hiring hundreds of people and developing dozens of programs for a subscription streaming service that will launch early next year. The new venture, called CNN+, was formally announced on Monday morning. It will exist side by side with CNN's existing television networks and will feature eight to twelve hours of live programming a day. Jeff Zucker portrayed CNN+ as the evolution of video news and the start of a new era for the company. "CNN invented cable news in 1980, defined online news in 1995 and now is taking an important step in expanding what news can be...