Following up on its letter to him last week, the House Oversight and Government Reform committee has issued a subpoena to Attorney General Michael Mukasey. The subpoena demands that the attorney general turn over to the committee the transcripts of the FBI’s interviews with President Bush and Vice President Cheney regarding their knowledge of the outing of former CIA covert officer Valerie Plame Wilson. It also requests unredacted copies of documents already in the committee’s possession.