The U.S. (in the form of the director of the FBI) recently revealed that its efforts to prevent American Moslems from travelling overseas to join Islamic terrorist organizations had worked. That was the good news. The bad news was that groups like ISIL (al Qaeda in Iraq and the Levant) had helped make this happen by urging foreigners who want to join to do so where they are and work to carry out attacks where they live. This advice was particularly useful for ISIL and the foreign recruits in Western nations where young Moslem men not only have problems getting to and operating in a Middle Eastern battleground. These woes (include the difficulty raising the cash for travel and avoiding government scrutiny. When they do get to the combat zone they often have language and culture clash problems. Many of the Western Moslems do not speak Arabic and are unfamiliar with Middle Eastern cultures. That means a lot of these volunteers are only really good for suicide bombing missions and even then they need a lot of coaching and guidance in actually carrying out the mission.