In Spain, radicalization in prisons is an issue that preoccupies the Iberian authorities and fuels public debates. Morocco is concerned since Madrid expels, each year, to the Kingdom a few thousand undocumented migrants, including former detainees for common law offenses.
To know how radicals think, a group of researchers scanned the brains of Spanish men of Moroccan origin in Barcelona. The survey concluded that violent extremism may be linked to social exclusion.