Dr Bela Arora, an expert on terrorism from the University of South Wales, said there is "some cause for concern" in terms of claims of links between Cardiff and militant groups - but the challenges we're facing are not disproportionate to many other large cities of similar size and demographic."
"There have clearly been some incidences over the years, which have caused concern about extremism and radicalisation, but these are relatively small in number."
"I think we're still at that stage where we're able to live with confidence and co-exist with this notion of a small but present level of threat that exists."
She said, in terms of counter-terrorism, there is "a great deal of work that's going on in Wales".
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