What the Jihadist barbarians don't realize (well, perhaps the real smart ones do) is that the United States is so well armed at the civilian level that this country can become, on very short notice, as armed as the Northwest Frontier in Pakistan.
Actually, much more so. Th battle here would become the meat grinder that we were (constantly, by the lib press) told Afghanistan would be. In reality, these pukes would be sh*tting their pants on the run.
The Founders were pretty clever, non?