Kristof's argument that the demise of print newspapers and the rise of the 'Daily Me' will further polarize consumers of media may not matter much as long as the creators and editors of the CONTENT choose to present (or not present at all) biased content! The mode of presentation is irrelevant, and for my money the quicker the newspapers move to digital, the better.
The problem he describes is shared equally by the creators/shapers of information and the consumers. It has little to do with the method of delivery.
"...That’s because there’s pretty good evidence that we generally don’t truly want good information — but rather information that confirms our prejudices. We may believe intellectually in the clash of opinions, but in practice we like to embed ourselves in the reassuring womb of an echo chamber."
"...So perhaps the only way forward is for each of us to struggle on our own to work out intellectually with sparring partners whose views we deplore. Think of it as a daily mental workout analogous to a trip to the gym; if you don’t work up a sweat, it doesn’t count."