This seems a perfect case for the ICJ. If Iran agrees to grant them jurisdiction that is. No one can reasonably argue that this court would be prejudiced against Iran. Of course, with the evidence overwhelmingly against Iran why would they agree to a trial they know they can't win. Then again the only way to enforce an ICJ verdict is through the Security Council and I doubt Iran would comply with any resolution from that body. Argentina is going to have to settle for trying them in absentia.
Report in Lebanon: Israel Air Force strikes Syria's Quneitra, 3 terror operatives killed (Haaretz)