Jacek Siewiera, advisor to the European Commission's PreparEU initiative, believes there is now "a world of increasing risks and threats", following the deadly shooting this weekend in Krakow, Poland.
As Polish authorities point to possible far-right ideological influences, Siewiera warns every type of radicalism "poses a risk of radicalisation" which might "become dangerous for the society". The former head of Poland's National Security Council also insists the "malicious influence" of social media plays "a critical role".
