At least he/she says "arguably."

Silent Patriot at Crooks and Liars:

Keith [Olberman] issued arguably his most powerful Special Comment yet tonight. This time he takes on the GOP's newest fearmongering ad which quotes Osama bin Laden and Ayman al-Zawahiri superimposed over pictures of explosions with the sound of a ticking bomb in the background.

Olberman has to be the audio-video equivalent of Glenn Greenwald.

They ought to be able to use his material down at Gitmo. It's only fair.