In Wednesday's CNN/YouTube debate, Sen. John McCain let slip a fairly stunning admission. The Arizona Republican assured viewers that he wouldn't need to lean on his vice president, George W. Bush-style, for national security expertise, but might "rely on a vice president" for help on less important issues such as "information technology, which is the future of this nation's economy."

Part of the problem is simply generational. According to the Senate historian, the Senate is the oldest it has ever been, with an average age of 62 during the 110th Congress. Most of the leaders of Senate committees had already graduated from college by the time TVs became widespread in American homes in the 1950s. As the United States advances into the information age, it can't afford to have its leaders' base of knowledge be rooted in the industrial era, lest their intellectual capacities come to resemble such relics as the decaying steel mills of Pittsburgh.