Neil Postman has a lot to say on this topic, which he terms the "news of the day" throughout Amusing Ourselves to Death. For example:
"This idea — that there is a content called “the news of the day” — was entirely created by the telegraph (and since amplified by newer media), which made it possible to move decontextualized information over vast spaces at incredible speed. The news of the day is a figment of our technological imagination. It is quite, precisely, a media event. We attend to fragments of events from all over the world because we have multiple media whose forms are well suited to fragmented conversation."
“How often does it occur that information provided you on morning radio or television, or in the morning newspaper, causes you to alter your plans for the day, or to take some action you would not otherwise have taken, or provides insight into some problem you are required to solve? For most of us, news of the weather will sometimes have consequences; for investors, news of the stock market; perhaps an occasional story about crime will do it, if by chance it occurred near where you live or involved someone you know. But most of our daily news is inert, consisting of information that gives us something to talk about but cannot lead to any meaningful action."
"You may get a sense of what this means by asking yourself another series of questions: What steps do you plan to take to reduce the conflict in the Middle East? Or the rates of inflation, crime and unemployment? What are your plans for preserving the environment or reducing the risk of nuclear war? What do you plan to do about NATO, OPEC, the CIA, affirmative action, and the monstrous treatment of the Baha’is in Iran? I shall take the liberty of answering for you: You plan to do nothing about them. You may, of course, cast a ballot for someone who claims to have some plans, as well as the power to act. But this you can do only once every two or four years by giving one hour of your time, hardly a satisfying means of expressing the broad range of opinions you hold. Voting, we might even say, is the next to last refuge of the politically impotent. The last refuge is, of course, giving your opinion to a pollster, who will get a version of it through a desiccated question, and then will submerge it in a Niagara of similar opinions, and convert them into—what else?—another piece of news. Thus, we have here a great loop of impotence: The news elicits from you a variety of opinions about which you can do nothing except to offer them as more news, about which you can do nothing.”