Some more info is showing up on the arrests of several anarchists in Catalonia and other Iberian localities. The arrested are accused of being the administrators of a Facebook group known as Kolektivo Bandera Negra (Black Flag Kollektivity), which was used for counter-information and anarchist propaganda.
The relationship between the arrested and the Ateneu Llibertari of Sabadell was at best accidental (one of their members may have gone a few times to this social center), what was no problem for police to raid the Ateneu mercilessly and take all the documentation in it, including hard disks and such.
There were also police raids in Málaga (Andalusia), Zaragoza (Aragon) and Avinyó (Catalonia). So far there is no known evidence of any "terrorist" link, in spite of wild bourgeois media speculations.
In a single day, with this and other operatives (against Basque Independentists, striking teachers in Aragon and even a Venezuelan PSUV activist arrested after a conference in Valencia), 21 people were arrested for crimes of political opinion in the Kingdom of Spain.