VOA spoke to terrorism experts who said IS supporters in the U.S. have little in common. Of the 56 people who were arrested, 86 percent of them were male. Almost all were American citizens or legal permanent residents. They were between 15 and 47 years old. Many were not even Muslims when they first became supporters of the group. Lorenzo Vidino was one of the researchers. He says those arrested had “all kinds of backgrounds.” IS supporters have one thing in common, however. Anne Speckhard is a research psychologist. She is the director of the International Center for the Study of Violent Extremism in Washington, DC. She says people who are likely to find IS attractive are off track. In other words, they are failing in their lives somehow. Speckhard has interviewed hundreds of IS supporters throughout the world. She says religion is part of extremist ideology, but it is rarely the most important part.