I think people confuse maybe 3 things which I have found no ideal solution to but the 3 things are:
1) following news
2) wanting to take opportunities to be involved in having an influence on things/making things better in one's society. This isn't very well served by news at all, I have no idea what it would be well served by, maybe being on an activist mailing list or many, being involved in local or party politics, obviously when a ballot arrives in the mail, that's a notification of one little thing one can do.
3) sheer curiosity about how the world works. this can be met partially by news, only news is broad but shallow here (yes books are a deeper treatment). And this desire to know can get kind of insatiable.
I guess there might be another motive that's strictly personal, of feeling they need to personally protect themselves from whatever is going on in the world, and so they read for threats as it were. There are lots of threats in the world, what can I say, maybe not mostly crime but maybe a threat is investing with Bernie Madoff I don't know, and we can only do so much to protect ourselves from them anyway, in a world where no one else is much going to.
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There is probably a reason weekly news magazines got started (like Newsweek etc. - not saying they are the best sources out there or anything, but thinking about the concept of weekly news). Because it's probably as much news as anyone really needs for any given week, it to read the news for the week ONCE a week.