Risen's Lawyer

A brief article in the Times reports that David N. Kelley, a lawyer for New York Times reporter James Risen, has written to attorney general Eric Holder asking Mr. Holder to withdraw a subpoena seeking information about Mr. Risen's confidential source. The article does not report who is paying Mr. Kelley's fee. Is it the Times? Is it the Free Press, the imprint of Simon & Schuster that published the 2006 book that is an issue in the case? Is it some insurance company that covers either the Times or the Free Press or Mr. Risen personally? Is Mr. Risen paying out of his own pocket? Or is Mr. Kelley volunteering his services?