Noted, by Felix Gilette: Katie Couric has still not hosted a debate:

How did the highest-paid anchor on evening television get upstaged by Brian Williams, Brit Hume, Charles Gibson, Wolf Blitzer, Tim Russert, George Stephanopoulos, Campbell Brown, Chris Wallace, Natalie Morales and on and on?

The official explanation from CBS: Ms. Couric was the victim of circumstance.

"I wish we had been able to work it out," said Sean McManus, the president of CBS News. "I think [Ms. Couric] would have been really good at it. I think it would have been a good showcase for CBS News. But it just wasn't to be this cycle."

As the Limeys say, bollocks. The idea that anything "just wasn't to be" in any media cycle does not exist in the minds of media executives. Gilette speculates that CBS is restrained by serious financial difficulties from throwing a debate. Hmm...