Monday night, KDFW-Channel 4 ran a piece about 70-year-old James Walton, owner of Able Walton Machine & Welding in West Dallas, who, early Sunday morning, shot and killed and man trying to break into his business. What made Walton's story so extraordinary was that it was the second time he'd killed an intruder in three weeks. As it happens, Walton also lives at his place of business. But today you will not find the Fox4 story on the station's Web site; there's a page for it, but no accompanying video. (Update: It's available here.) That's because Rebecca Aguilar's piece elicited...