All these rocket launches, with a game of silence, and subsequent clarification, that the Israeli missile defense was tested, and Washington is aware, в регионе, where to submit a match, and flames, recalled one episode, what happened in the region almost half a century ago:
And this is a discussion of that case on the Israeli waronline http://www.waronline.org/forum/viewtopic.php?t=6618
In the photographs of the shot & quot; Liberty" after the incident (can be found on the internet), the American flag is visible on the mast, so the question about random fire on allies, in terms of visual proximity, in great doubt.
UPD According to Wikipedia, in Syria – 36 complexes Pantsir-C1
Perhaps they managed to deliver the S-300
So the allies' indecision is understandable..