Iran's not a bad candidate, but why not RUSSIA? After all, Syria is their client since forever and the location of Russia's ONLY navy base in the Med.
The reason Russia isn't named is cuz Israel probably couldn't get the USA to attack Russia on behalf of Israel, but miiiight just prove able to get Iran.
Still, Iran is not a bad guess.
Brennan started out with the major Libyan/Turk/Syrian smuggling, but soon took to pink-misting the gents whom he didn't like out there, and their comrades had some fairly major complaints about that.
Those guys had foreign sponsorship in their attack, and it was either Russia or Iran.
Still, who in their right minds would wonder WHY Israel would prefer that America think the culprit was Iran...?
Pretty sure Russia would use a proxy.