Listening to Chuck, it crossed my mind that he and a lot of others already know the leak source, and are concerned now with the fate of the leaker. If the Americans did not agree with the president on this issue (on the need for the surveilance), the democrats would likely be much more smug. But Chuck appeared ready to acknowledge that the leak investigation would find the perp, and it sounded a lot to me that we will find it is someone in the NSA at a lower level who decided on their own that this was more privacy invasion than they could handle, and sought to find a friendly ear. None inside, so they went outside. Just a guess, but time will tell.
"..........it sounded a lot to me that we will find it is someone in the NSA at a lower level........."
If the situation were that simple, the Dims would have exposed the source themselves and have him/her/them on every friendly MSM outlet in the known universe singing Gregorian chants about The Evil George Bush.
From the way they are alternately scurrying for cover or trotting out faint hopes (I consider this Whistleblower ploy as almost too sophmorish to be believed), they know that the sources (more than one) are ALL not only well-known, but very far up in the Dim's power structure, have their fingerprints all over everything in sight and have yet to figure out which of their company get to fall on their sword to try to make this all go away.
IMHO, the entire lib establishment is in a full-blown four-alarm panic. Reminds me a lot of a bunch of rats caught in a trap.