I am aware of one account of a pair of Ukrainian Sukhoi fighters in the area, but I believe that was discarded as propaganda from the Russians, as one source was Alex Jones.
Another source I just found is here
http://www.businessinsider.com.au/source-malaysia-flight-mh17-was-being-escorted-by-ukrainian-su-27-fighter-jets-v2-2014-7
Debate is good; looking forward to reading the comments.
This has been shown a thousand times to be nonsense. Also couple of times even here on FR.
This looks like toilet paper to me. We used to throw it out the back of C-130s during jump demos.
There are several different videos of what appears to be white streamers in the black smoke, but the consensus opinion is that it’s falling debris not chaff.
The Russian military claims a second aircraft was in the vicinity of flight MH17, Ukraine denies it, and so far the United States hasn’t produced any evidence to refute their claim.
So you don’t know what chaff is.
I’ve disbursed lots of it, and that isn’t chaff.
How do I know? Its visible. WWII chaff used against long wave search radars was large, modern chaff is designed to be used against microwave radars and is made of extremely small fiberglass dipoles. You might see it floating down from 10’ away (although it would be extremely disbursed at the ground) but you couldn’t possibly see it at 50’ or more.
When one explodes a passenger jet, you get a lot of debris, including a lot of insulation, tape, cloth, plastic, aluminum sheeting, carbon fiber, shoes, etc. That is what you are seeing.
You are wondering why debris is falling in the sky after a passenger airliner has been hit by a missile?