The Pentagon is trying to figure out why Islamic State has been so successful at attracting followers. "What makes I.S. so magnetic, inspirational?" Major Gen. Michael Nagata, who commands U.S. special operations forces in the Middle East, asked a conference call of outside experts examining the question, according to a recent New York Times report. "They are drawing people to them in droves," he said. "There are I.S. T-shirts and mugs." On a later call, Nagata admitted, "I do not understand the intangible power of ISIL," another name for the group.