Israel is worried

"The official, who spoke on condition of anonymity because military regulations prevent him from releasing the information, claimed more than 30,000 al-Qaida linked fighters are active in Syria, a huge increase over previous Western estimates. He did not disclose how Israel reached the figure or specify which groups were included in the count, only defining the fighters as believers in "global jihad," which he said meant a mix of those linked to al-Qaida or inspired by the terror network."