Manuel Valls said France is facing an unprecedented threat from terrorism . 'We have never had to face this kind of terrorism in our history , ' he said . Comments follow the arrest of 24-year-old student Aurelie Chatelain who was allegedly plotting attacks on Catholic churches in Paris . DNA also reportedly links Algerian to murder of dancer Sid Ahmed Ghlam .
Manuel Valls said France is facing an unprecedented threat from terrorism . 'We have never had to face this kind of terrorism in our history , ' he said . Comments follow the arrest of 24-year-old student Sid Ahmed Ghlam who was allegedly plotting attacks on Catholic churches in Paris . DNA also reportedly links Algerian to murder of dancer Aurelie Chatelain .