The imprisonment of singer Pablo Hasél sparks violent protests in Barcelona. Thousands of young people have taken to the streets to protest over freedom of expression.

The death of Daphne Caruana Galizia calls into question the safety of journalists fighting for freedom of expression.

Big-brother style plans to tackle extremism on campus could turn students and lecturers into government spies.

Artefact caught up with Jon Snow shortly after the Paris attacks to discuss liberty, free speech and press freedom.