Malaysian 777 Airplane Down

This is obviously not good.
From Fox News:
Search and rescue crews from several countries were scrambling Saturday to locate a Malaysia Airlines plane with 239 people aboard, including four Americans, that disappeared after losing contact with air traffic control on its way from Kuala Lumpur to Beijing.
The airline said the Boeing 777-200 lost contact with Subang Air Traffic Control at 2:40 a.m., two hours into the flight. The plane, which carried passengers mostly from China but also from other Asian countries, North America and Europe, had been expected to land in Beijing at 6:30 a.m. Saturday
China's state-run news agency Xinhua reported the plane was lost in airspace controlled by Vietnam, and never made contact with Chinese air traffic controllers. There have been no reports of a plane crashing into Chinese waters, and China is assisting the airline in its search for the plane. 
The plane is carrying 227 passengers, including two infants, and 12 crew members. The airline said in a statement that the passengers are of 14 different nationalities and the airline is currently notifying next-of-kin about the situation.  http://www.foxnews.com/world/2014/03/08/malaysia-airlines-loses-contact-with-plane-carrying-23-people/
Considering that Malaysia is a Muslim country, terrorism certainly cannot be ruled out.