The Narrowing Lens

A piece Drezner quoted in post I just referenced (full pdf linked in the title):

Sample Chapter for Sunstein, C.: Republic.com.: "It is some time in the future. Technology has greatly increased people's ability to 'filter' what they want to read, see, and hear. General interest newspapers and magazines are largely a thing of the past. The same is true of broadcasters. The idea of choosing 'channel 4' or instead 'channel 7' seems positively quaint. With the aid of a television or computer screen, and the Internet, you are able to design your own newspapers and magazines. Having dispensed with broadcasters, you can choose your own video programming, with movies, game shows, sports, shopping, and news of your choice. You mix and match. You need not come across topics and views that you have not sought out. Without any difficulty, you are able to see exactly what you want to see, no more and no less."