Editor's note: Peter Bergen is CNN's national security analyst, a vice president at New America and professor of practice at Arizona State University. He is the author of "Manhunt: The Ten-Year Search for bin Laden -- From 9/11 to Abbottabad." Emily Schneider is a research associate at New America.
(CNN) -- ISIS is looking to take over a good chunk of the Middle East -- if not the entire Muslim world. At least, that's the message the terrorist movement is sending in its English online magazine, Dabiq.