I would tell them kids you can leave but you cann't come back.
Washington (CNN)The FBI and Department of Homeland Security sent a joint warning to law enforcement across the country about the concern over a growing trend of girls and boys wanting to fight with ISIS in the wake of the detention of a 17-year-old Northern Virginia teen last week, according to a law enforcement official who has read the report.
Law enforcement warning sent about American youth, ISIS - CNN.com