[projekktor id=’14034′]

As the world waits for answers to the airliner — experts are weighing in on what may have happened — and how the international community may respond.

While the world responds in horror to the crash, the experts we spoke with today say it’s too early to tell exactly what happened or the impact it will have. But there are some disturbing clues.

Most aircraft, commercial or military flying over 10,000 feet, put out a form of an IFF signal. That stands for ‘Identification Friend or Foe’. Experts say this Malaysian aircraft would have been transmitting that and anyone with radar would know it was a commercial aircraft.

There’s been speculation that it was a SAM13 or Surface to Air Missle 13, that may have taken this plane down.

But a security expert we talked to says that the SAM 13 does not have that range. So if it wasn’t a SAM 13, it was a longer range missile.

And that would make it much less likely to be a mistake.

John Thompson is a security expert: “A SAM 13 is one sergeant firing a missile by himself. This was shot by a larger weapon system with more sophisticated organization system built around it and makes the mistake more profound or else it was a deliberate action.”

Others say if Russia is somehow behind this, it’s a sign the Kremlin is losing control of its own troops.

Pierre Lizee, Brock University: “The Kremlin has delivered new weapons to these groups and now these groups or so it would seem act on the basis of local decisions. There’s no question if it was made on the ground or if it was simply a mistake.”

So while we may not know right now if this was deliberate or a terrible mistake, experts say it could have been prevented.

Thompson says there should have been a “NOTAM” or “Notice to Airman” warning, telling all planes to divert from this area because of the conflict.