"The identity of those with whom the San Diego congressman met while wearing the wire remains unclear, and is the source of furious — and nervous — speculation by congressional Republicans. A Cunningham lawyer, K. Lee Blalack, refused to confirm or deny the story, and wouldn't say whether Cunningham will implicate any other members of Congress. The FBI is believed to be continuing its probe of defense contractors involved in the Cunningham case."
Before we get too excited over the possibility of additional Congressmen being caught by these recordings we must take into consideration the possible implications of Article I, Section 6 of The Constitution:
Section. 6. The Senators and Representatives shall receive a Compensation for their Services, to be ascertained by Law, and paid out of the Treasury of the United States. They shall in all Cases, except Treason, Felony and Breach of the Peace, be privileged from Arrest during their Attendance at the Session of their respective Houses, and in going to and returning from the same; and for any Speech or Debate in either House, they shall not be questioned in any other Place.
My guess is the wire was aimed at the defense contractors involved but we shall see what comes of this.