The head of the Police Officers’ Association said British nationals who travel to Syria to fight with the rebels could be arrested upon their return, and noted that already this year UK authorities have arrested 16 people on suspicion of terrorism offenses in Syria, compared to 24 arrests total in 2013. Former prime minister Tony Blair warned that religious extremism has become the main source of conflict in this century, and recommended that governments tackle the problem at its ideological roots by promoting religious tolerance.
