To me Twitter has always been real time news. Why haven't they worked on a way to 'validate' tweets around a story, I can't understand it (from a biz perspecti

To me Twitter has always been real time news. Why haven't they worked on a way to 'validate' tweets around a story, I can't understand it (from a biz perspective, not technically). With validation they become, instantly, the #1 news agency in the world.