In a letter to the court on behalf of Scooter Libby, Paul Wolfowitz wrote:
I also remember how Mr. Libby offered his services pro bono or at reduced costs after he had returned to private law practice – to help former colleagues and friends with legal issues. In one case he helped a public official defend himself against libelous accusations, something that is extremely difficult to do for anyone in public office. The official in question was Richard Armitage who more recently served as – Deputy Secretary of State.
Via David Frum.