Being underground is not a condition Enric Duran always takes literally, but one night in late January he went from basement to basement. At a hackerspace under a tiny library just south of Paris, he met a group of activists from across France and then traveled with them by bus and Métro to another meeting place, in an old palace on the north end of the city. On the ground floor it felt like an art gallery, with white walls and sensitive acoustics, but the basement below was like a cave, full of costumes and scientific instruments and exposed masonry. There, Duran arranged chairs in a circle for the dozen or so people who'd made the journey. As they were settling in and discussing which language they'd speak, a woman from upstairs, attending an event about open licenses, peeked in through the doorway. She pointed Duran out to her friend, trying, barely, to contain herself. After the meeting was over, she came right up to him. "You're the bank robber!" she said.