I found this video on the same page as the recently posted Alexander Retrov video regarding 2012. The captions suggest that this presidential announcement was recorded in preparation for some 2012 catastrophe that the administration already knows will occur. I'm not convinced this is the case, since the captions could have been added by anyone. And, what's with all the bleached-out frames? Were they altered for affect? (The video was posted by a company that sells underground bunkers, but was apparently uploaded from http://www.whitehouse.gov/.)
What strikes me is that such an announcement would be pre-recorded in anticipation of any disaster. Or am I being naive? Maybe it's routine practice for presidents to prepare such a speech, in case of emergency.
In any event, it will be interesting to see if this video ever gets any official air play.
WARNING: Loud, annoying beeps at the beginning and end of this announcement.