Terrible tragedy. Seems the search is simply not in the right location:
http://www.nytimes.com/2014/03/12/world/asia/malaysia-jet.html?hp
No calls or texts from any passengers to loved ones
No distress calls from pilots (When all hell breaks loose, comms is last in priority)
No debris
Had to have happened fast. Debris field will probably be found far from where the search currently is.