Worring developments http://www.bbc.co.uk/news/world-asia-26502843
A big concern that is being addressed now is potentially two stolen passports were used to gain entry to the flight. Aviation security has been pretty beefed since 9/11 with watertight procedures in place resulting in minimal incidents of the less severe kind all over the world. This could be a major setback if the terrorism aspect is discovered as the cause of the disappearance of the aircraft.