Muhammad Robert Heft, once a radicalized Muslim, runs Paradise Forever, a support group for new Muslims and those who have rediscovered their faith.

But the group has also become a de-radicalization program for those with extremist thoughts, many of them disenchanted young men, looking for a cause and an identity in religion.

Heft, who has brought about 40 young men back from a dangerous brink., said it can take months or years to contain if not eradicate a threat and to provide a new sense of community

CBC's Ioanna Roumeliotis reports on the program that involves three steps: theological detox; offering support services; and creating a sense of community accountability.