Several articles on this appearing fast everywhere.
STRATFOR predicts the following:
The timing of the Bulgaria attack is also notable. Iran is likely using its militant proxies in response to the intensifying rebel campaign against the Syrian regime. Similar plots targeting Israelis and others can be expected as the Syrian regime continues to weaken.
Given that Israel was excluded from the global forum on terrorism, I can imagine they may not be feeling the need for an international committee to tell them how to respond. We all know what the ‘international community; will advise.