This is an audio clip of a radio interview given by Pat Caddell fingers Obama's National Security Adviser Thomas Donilon as the likely White House leaker of classified operations.
From the beginning I have speculated personally that it was either Donilon or Jarrett. This gives a picture of personality, access, past performance, etc. that leads Caddell, a liberal but somewhat "common sense" Democrat, to the conclusion that it is obviously (to him) Tom Donilon who is the White House leaker.
Most importantly, Caddell asks the question of why Donilon is National Security Adviser in the first place. That is a question I have been asking myself.