One thing though... the US military is publicly saying that this is "no threat to our national security". However, if nobody knows who or what it was, then how come it's "no threat"? The media are not making much of an issue of this either, yet for the last 10 years or so, they have been freaking out at the most laughably bogus scare-mongering involving, typically, phony bombs in airports or impossible schemes to blow up planes using hair conditioner and toothpaste.
In contrast, an unidentified rocket launch out of the ocean near the US' 2nd largest city is dismissed along the lines of "move along now, nothing to see here". Perhaps there was no "muslim connection that could be sold to the masses".. so there's the reason for it being a non-event by the media and powers-that-be?