Really??? North Korea? How about Next Of Kin, that would make a bit more sense after an aircraft has gone missing.

Malaysian 777 missing
 

If the aircraft had technical issues it should send as standard fault messages/maintenance messages for each flight via the Boeing Airplane Health Management system (AHM)

Modern aircraft just don't break up in flight without something else first happening. Someone has pointed out that this aircraft has had structural wing damage, and like China #611, I think maybe safe to say that it was also not repaired in accordance with the Boeing SRM.
Previous damage and some CAT.....
Godspeed.

A whole lot of reasons. Fractures could have been expanding and this was the flight that did it in and the airplane broke up in flight, there could have been a suicidal pilot, or there could have even been confusion in the cockpit which led to a loss of situational awareness.

Maybe an instant fire in or around the fuel tank that happened so fast the plane exploded before any message could be sent. Kind of like the challenger crash (no data explained it until it was deeply researched by Richard Feynman)

Something like this :(

China Airlines Flight 611 - Wikipedia, the free encyclopedia

Edit: Sorry pilotguy - I posted before I read your post.

http://www.nytimes.com/2014/03/09/wo...ight.html?_r=0

Oil slick spotted. :(

I have a few friends that are captains at Malaysian, for what they tell me their maintenance is as good as ours here in Japan, so I wouldn't be so sure.

I just read a piece that reported an Italian who was on the manifest was not on the plane, but he did have his passport stolen a few months ago.

Pilot suicide, electrical problems, fire, electrical fire, mechanical flight control failure, uncommanded full throw of a control surface, slow cabin press leak, etc etc etc. All things that have happened before.

You guys are speculating based on zero info.