It's the year 2015. The compact device in my hand delivers me the world, one news story at a time. I flip through my favorite papers and magazines, the images as crisp as in print, without a maddening wait for each page to load.

Even better, the device knows who I am, what I like, and what I have already read. So while I get all the news and comment, I also see stories tailored for my interests. I zip through a health story in The Wall Street Journal and a piece about Iraq from...