There are "already many parents" who have contacted the police to stop their children fighting in the Syrian civil war, Dr Usama Hasan told Daybreak.
Dr Hasan, senior researcher at the anti-extremism organisation Quilliam Foundation, said the national awareness campaign to encourage parents to stop their child from fighting alongside jihadis in Syria was "very important" and urged Britain to be "open" about their citizens joining the war.
"Britain should be open about this issue ... hundreds of our fellow citizens are going to these places and let's understand the issue by trying to see what we can do about it," he added.
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