After the November 2015 Paris attacks, Brisard was quoted by the media about an important aspect concerning the perpetrators who were mostly European nationals who had been in Syria temporarily and had returned radicalized. "We have changed the paradigm," Brisard said. "Our own citizens come back to Europe to perpetrate attacks. Europe needs to take that into account." In fact, experts indicate that more than 3,000 Europeans have traveled to Syria and joined Islamic State and other radical groups, as reported by the "Los Angeles Times".