On the first, you are confusing a broken campaign promise with a lie. On the second, if you can find a reason why Obama would profit from first saying it was protesting the video and then changing the story, I guess you'd have a good case.
It falls under her regular contract with Giant Liberal Conspiracy, LLC.
So you think politicians shouldn't be called out in the media when they lie?
barfo
Well, you're wrong about Obama - he lied about Gitmo, he lied about unemployment staying lower than 10% with his stimulus package, he lied about putting prisoners on trial in NYC, he lied about not raising taxes on the middle class, he lied about getting us out of Iraq by 2009, he lied about cutting the deficit in half by 2011. Do I need to go on? Lots of video clips of Obama making these promises not kept - good for 15 second commercials.
Maddow should call them both out, no? Or at least she should say "Romney lied, Obama didn't because barfo said so."
As for the youtube video and Libya... I suggest you read this article by Bill Gertz (he covered defense and intelligence issues for the Washington Times for 30 years):
http://freebeacon.com/revolt-of-the-spooks/
My take would be that when you go around doing the end zone dance, spiking Bin Laden's head like a football ("Bin Laden's dead, GM is not!") and the only "good" thing you can run on as achievements from your first term is foreign policy, then your foreign policy better look good through the election.
I don't fault the administration for blowing it, in terms of providing security for the embassies. But it sure looks bad ("Ambassador's dead, so's the Chevy Volt!"). So cover it up by saying there was no warning, it was a spur of the moment thing during a peaceful looking protest.
But hey, we were talking about lying - isn't this a pretty serious thing to lie about?