25,000 feet in the air or twiefr,000 metres in the air i should say, yes, 25,000 metres in the air about 82,000 feet roughly double a commercial jet. according to jason defense analysts, both the ukrainian and russian militarys have these weapons in their arsenal. cnn's tom foreman has more on this particular missile system. >> if you want to figure out what could have hit this plane, you have to think about the circumstances of the plane at the time. it was about 32, 33,000 feet in the air over ukraine. it was about 30 miles away from the russian border. so you cannot hit this with some shoulder-fired anti-aircraft missile. they're just not strong enough. what you would need is something much more like this. this is the buc anti-missile system it's one of those that is being talked about in this case. it is a four-man unit. it has four ready-to-fire