YouTube - Video of Giant A380 Colliding with CRJ700 at JFK, New York(with Subtitles!)
According to news sources, Air France Airbus A380 was heading towards runway for flight to Paris. The Comair CRJ701ER Delta Connection flight had just arrived in New York from Boston.
I think either ATC made some mistake or Comair aircraft was not in place where it should have been to provide clear area for safe movement of A380.
P.S
The video is windened that is why the A380 appears to be a A340.
Press Release of the Incident:
NTSB Press Release