There may be more than a 100 Australian Muslims fighting with the Islamic State of Iraq and the Levant. In security circles, these people are assessed as high risk for Australia. Their militant ideology and practical knowledge of weapons use could pose a threat to Australian society upon their return. But the risk they pose is actually far greater than the immediate security threat. They threaten the very social fabric that has fostered Muslim communities. They put Australia's tradition of multiculturalism at risk and offer fodder to Islamophic commentators who see all Muslims as terrorists at heart.