Collecting ghost nets and recycling solutions

Spain's radically different approach to migration, how Norway is taking the fun out of gambling and a rare glimpse into an Italian prison amid a push to reform. Then: the brutal murder of journalist and environmental defender Hakan Tosun, NVIDIA's new AI hub in Armenia, and our first Age is Just a Number profile, featuring Lefteris Arapakis – a man on a mission to clean up the Mediterranean.