Ace has a comprehensive explanation of the allegations against Kos and comes to the following conclusion:

The one truly corrupt charge is most likely untrue, the charges suggesting moderate corruption may or may not be true, and, alas, there’s a decent chance there’s no corruption at all here. However. As they say, it’s not the crime, it’s the cover-up. Even if Kos is found to have done nothing wrong in his dealings with Armstrong and his clients, there’s still that matter of the La Kos-a Nostra oath of silence. And there’s still that matter of a previously-secret behind-the-scenes message-unifying email list. Liberal bloggers are coordinating with each other, outside the view of their readers, to agree upon a common message for the day.

Don’t believe him? Read Jason Zengerle’s latest post on TNR’s The Plank.