This Year. January 2015, the Australian Government Review of Australia’s Counter Terrorism Machinery said:
...There are an increasing number of potential terrorists, supporters and sympathisers in our community. and that ... ...There is now an intergenerational dimension, with the families of known terrorists increasingly radicalised and involved....and ... we need to: .... acknowledge that we have entered a new, long-term paradigm of heightened terrorism threat with a much more significant ‘home grown’ element.
All Jihadis that want to leave. Let them go. And not ever come back.