The Washington Post's Dan Froomkin is always worth reading, but today's online chat is especially good.

For example:

Shingletown, Calif.: If Hume doesn't ask Cheney the alcohol question, what do you think the chances are that he will ever have to deny the accusation on the record? Would you care to speculate on any other reason that Cheney would have deliberately delayed reporting this incident for so long?

Dan Froomkin: There are lots of possibilities. It could have been an immature, petulant refusal to acknowledge what happened. It could have been a way to cover up -- or consider covering up -- for some other kind of negligence. It could have been just to spite the media. It could have been an intense aversion to being held accountable. Or I guess he could have just forgotten.