The sentinel of the liberal media

EVERY MORNING AT SEVEN, Kyle Drennen, thirty-four, settles into his living room in suburban Fairfax, Virginia, with a bowl of cereal and turns on NBC. He spends thirty minutes or so watching the hard-news segments at the top of the Today show before heading to work at NewsBusters, a nonprofit that monitors the media, eleven miles down the road in Reston. He arrives most days at about eight thirty.

There, he scans the rest of the program on a sophisticated DVR system, looking for segments that he thinks demonstrate...