TVNewser has discovered the cause of studio fire that interrupted CNN Headline News yesterday: Apparently it was an exploding light bulb.

It was not, as I guessed, Lou Dobbs bursting into flames of righteous anger. He appeared at his regularly scheduled time of 6:00 pm EST on CNN, and seemed to be in a good mood as he entertained the the dim-bulb rantings of Air America’s Randi Rhodes.

What with all the bulbs at CNN either exploding or dim, I think Gallup made the right call.