I've seen some articles posted on this--think it was yesterday. You might do a quick search using "Russia" and "Israel." If memory serves, Russia was quick to consult with Israel, and some were wondering if it might be because there were apparently Syrians among the Arab terrorists in the group.
If as reported, it is very huge. Thatas becuase to share intelligence involves a high degree of trust at the operational level, and the Israelis won't be giving up data unless they get good stuff in return. Sound to em iek someone in Russia drew a cicrle on a map of the range of the Iranian missile, and noticed how much of Russia it encompassed.