http://bit.ly/1zfNXza IS has gone farther than other extremist groups, including al-Qaeda, in its ability to expand into territories and win and keep the support of its sympathizers. It has support throughout the Middle East and elsewhere, and doesn’t look like it’s going to slow down anytime soon – and that’s where Saudi Arabia comes in, according to the Jamestown Foundation. “In addition to confronting the incumbent regimes in Iraq and Syria and rival militants and insurgents, the Islamic State has an ambitious set of goals that include challenging Saudi Arabia,” the Foundation says. IS, it adds, is behaving in a more aggressive manner toward Saudi Arabia. In an audio statement released last fall, the group’s leader Abu Bakr al-Baghdadi talked of expanding into the “lands of al-Haramein” (two holy places), refusing even to call it by the name Saudi Arabia because IS considers the Saudi royal family unworthy of any recognition. Al-Baghdadi instead highlights Islam’s two holiest sites...