SYRIAN AIR DEFENSE SYSTEM TESTED BY ISRAEL AND FAILED

"... the Pantsyr-S1E missiles, purchased from Russia to repel air assailants, failed to down the Israeli jets accused of penetrating northern Syrian airspace... The new Pantsyr missiles therefore leave Syrian and Iranian airspace vulnerable to hostile intrusion... information on Russian missile consignments to Syria or Iran is vital to any US calculation of whether to attack Iran over its nuclear program... (the Israeli intrusion showed) that the “absolute jamming immunity” which the Russian manufactures promised for the improved Pantsyr missiles was immobilized by superior electronic capabilities exercised by the jets before they were “forced to leave...”
http://www.debka.com/article.php?aid=1301