The USS Iwo Jima Amphibious Group is in the area:
Link: http://www.navy.mil/submit/display.asp?story_id=85150

And what an ARG can do: http://en.wikipedia.org/wiki/Amphibious_ready_group

I also know that the Theodore Roosevelt carrier task group is in the area as well.

In other words, a Marine infantry battalion, with air support from attack helicopters and carrier aircraft and helicopter and tilt rotor aviation support sufficient to evacuate a substantial number of people is in the area and not being used.

It certainly seems we have the necessary military assets in the area to conduct a rescue, although I will grant getting all the US citizens in Yemen to one place where they can be evacuated without them being killed or captured is likely a problem.

State department press briefing spokesperson danced all over the questions....

That was reported on various news channels that the gatekeepers ask us to avoid.