Financial institutions should rely on "non-financial indicators" such as social-media activity and crowdfunding behavior to identify and disrupt possible instances of youth radicalization and domestic terrorism, a senior Canadian national-security official said Wednesday. Canada's financial intelligence unit, the Financial Transactions and Reports Analysis Centre, also known as Fintrac, identified ideologically motivated extremism and youth radicalization as one the country's most pressing threats in a national assessment on money laundering- and terrorist financing-related threats in August. Fintrac urged financial institutions to monitor for suspicious activity that could hint that their customers have become radicalized, and collaborate with law enforcement to disrupt...