2) No trace of the alleged missile has been seen falling into the water off the coast of Los Angeles, nor has the missile or any part of it been recovered; it seems to have simply vanished into the sky. If the contrail was created by a plane, of course, no falling missile would be seen nor found.
3) The object seen in the video moves like a jet, not a rocket. As Michio Kaku, a physics professor at City University of New York noted on Good Morning America, "The trail seems to change direction. Ballistic missiles don't do that. It doesn't accelerate. Ballistic missiles accelerate up to 18,000 miles per hour, this is traveling at a constant velocity." While missiles accelerate greatly during launch, aircraft typically maintain a constant cruising speed once they have reached the desired altitude - exactly as the videotape shows.
4) There is no record of any missiles being fired at the location and time of the sighting, while there are records of commercial jets in the area at the time. One blogger, Liem Bahneman, has tentatively identified the route and flight number as US Airways Flight 808 from Honolulu, Hawaii, to Phoenix, Arizona.