I'm in agreement with the analysis that Rice just laid the source of the request at Obama's feet.
Here at about :50 seconds into the video she says this:
”Let me explain how this works. I was a National Security Adviser, my job is to protect the American people and the security of our country. That’s the same as the Secretary of State, Secretary of Defense and CIA Director.; and every morning, to enable us to do that, we receive – from the intelligence community – a compilation of intelligence reports that the IC, the intelligence community, has selected for us –on a daily basis– to give us the best information as to what’s going on around the world.”That has to be a reference to the Presidential Daily Briefing, which is (I think) the only report given to the president on a daily basis.
Rice is confirming the unmasking request came from her, and directly related to her need to understand -on behalf of His Heinous Obama- intelligence for the
President’s Daily Briefing.
http://www.youtube.com/watch?v=RpjN4iEz9OoWhat is being discussed is that the Daily Briefing is disseminated among roughly 30 individuals
including “Deputy Secretaries of national security departments”.
So under Obama’s watch Deputy Asst. Secretaries of Defense had daily access to the Daily Briefing. And who was an Obama Deputy Secretary of Defense?

It's a small world after all!
Of cours the genius of laying this at His Heinous' feet is that there is not a single spineless jellyfish of a Representative who will prosecute Obama or call him to testify.
So this will go the same way Benghazi and Hillary's e-mails went.