What we find from that, and I think it's the most significant part of it, is that he puts it down to the atomizing nature of television. That's why the cohorts after 1950 and subsequently are more and more involved. In 1950, if you wanted a sporting event, you'd go out and watch a baseball game at the local ballpark. Now you turn on the TV. If you wanted what was going on politically, you'd go out to a local meeting, you'd get to know your neighbours, you'd get more involved.
On June 19th, 2007. See this statement in context.