[ExNewsExSpook]

Even ABC picked up on the weather angle; they checked with Accu-Weather, which reported mostly cloudy skies across the D.C. region at the time Marine One departed, with SE winds at 10 mph, and temps in the mid-70s. Not a thunderstorm on the radar, and (apparently) no reports of wind shear over the Maryland mountains.

I have two theories: first, Marine One experienced a major mechanical malfunction, forcing an emergency landing. Concern about other choppers in the fleet prevented Obama from taking another one on to Camp David. But that theory is obliterated if The One flew back to the White House to meet up with a motorcade.

Second theory: some sort of threat (real or perceived) along the route of flight. There is renewed concern about advanced MANPADS making their way into the hands of terrorists. The sighting of someone with an SA-24 along the flight path would be enough to force a change in plans.

[KeyLargo]

Most likely Obama forgot his favorite outfit and had to return.

Or he left the training wheels for his bike at the W.H.

[steve86]

The sighting of someone with an SA-24 along the flight path would be enough to force a change in plans.

I imagine it would!!!

[detective]

My guess is that the Barack and/or Michelle started acting really crazy, I mean violent crazy. That's why they had to land the helicopter.

There seems to be serious problems between them. Possibly because of Barack’s boyfriends and his drinking and drug abuse. That is why they took separate jets to Martha's Vineyard.

[newnhdad]

that was the first thing I thought too. Frederick airport is very close to Cp David, it’s almost out of the way. There was a direct threat or the helicopter had some sort of major malfunction. The friggin weather was perfect, I actually wish it was raining because we need it.

this does not smell right but the media will never ask.

[iopscusa]

Who attempted to down Marine One? http://lamecherry.blogspot.com/2011/09/who-attempted-to-down-marine-one.html