By Heather Green
How is it possible that someone can be an undecided voter at this point? On TV or in newspaper stories, the undecideds admit that thanks to the debates and general news coverage, they're familiar with the Presidential candidates' different positions. So why can't folks make up their minds?
What people do with information available to them is at the heart of the puzzle concerning what impact the Internet has on the political debate. Does the Web, which offers unprecedented control over what we read and when, let us shut ourselves off from opinions we don't want to consider? Are people