Is Clinton on a 'secret mission'?

"... What's more, Clinton is conspicuously missing—even by videoconference—from the list of senior Obama national security advisers and cabinet chiefs due to meet with the President today on Afghanistan and Pakistan at 11:30 AM.

Asked about her absence from the list, a White House spokesman said he doesn't know why she's not participating in the Af-Pak powwow,...

So is Clinton on a secret diplomatic mission? Has she slipped off for a quiet family get-away? Is America's top diplomat simply ground down by her brutal schedule, or laid up with a case of spring allergies, which she acknowledged suffering from last year?...

In the meantime, we also note in passing presumably unconnected reports via RFERL's Golnaz Esfandiari that Iranian President Mahmoud Ahmadinejad has also not shown up at work for four days, and reportedly did not attend a cabinet meeting Sunday. Presumably an Easter long-weekend get-away does not explain the beleaguered Iranian leader's reported absence...."