Nobody (a.k.a., the FAA or the Pentagon!) is taking responsibility for this seeming missile launch off the coast in Southern California. Well, the Pentagon said that, although it wasn't sure, it "must have been" the contrail of an aircraft "of some sort."
What sort?
No alerts were issued by either the Navy or the Air Force (or anyone else!) before this peculiar exhaust plume shot into the air on Monday. Considering the fact that Los Angeles is larger than Ocean Shores, Ocean City and Pacific Beach, WA all rolled into one (that's about 6,000 of us all told), and that the location of an International Airport is within a dozen miles or so of this "contrail-NOT," a missile testing would have been announced both ahead of time and during the launch.
Thirty-five miles out to sea was the first Pentagon estimate of where the launch would have been before it backed down to its "I don't know!" back-up position with the highest likelihood being that it was the contrail of an aircraft moving toward the camera on the helicopter from which the photo above was taken.
Actually dozens of photographs have surfaced and at least one video--a video that was revealed by the KCBS News Station, which caught the mysterious aerial display using a heliborne video camera ... peculiar, eh? Go to Google.com and use the keywords "mysterious missile launch" before clicking on the "Images" or the "Video" options. Two distinctly different videos are also on YouTube, but one has no additional details as to who took the video and the other is the one released by KCBS television.
One rather revealing photo displayed a spiraling of the exhaust plume cum aircraft contrail cum who-knows-what that has Mediawingnuts dumbfounded. Admittedly, my previous work with the USAF did not give me access to anything like this. I would recommend to you that you visit a website run by a friend of mine inasmuch as he is following this mystery up with FOIA (Freedom of Information Access) requests and scientific analysis.